( jiyg;gpw;F fPNo cs;s ypq;if fpspf; nra;J FOtpy; ,izaTk;! )
 Padasalai's NEWS - Group
https://t.me/joinchat/NIfCqVRBNj9hhV4wu6_NqA
 Padasalai's Channel - Group
https://t.me/padasalaichannel
 Lesson Plan - Group
https://t.me/joinchat/NIfCqVWwo5iL-21gpzrXLw
 12th Standard - Group
https://t.me/Padasalai_12th
 11th Standard - Group
https://t.me/Padasalai_11th
 10th Standard - Group
https://t.me/Padasalai_10th
 9th Standard - Group
https://t.me/Padasalai_9th
 6th to 8th Standard - Group
https://t.me/Padasalai_6to8
 1st to 5th Standard - Group
https://t.me/Padasalai_1to5
 TET - Group
https://t.me/Padasalai_TET
 PGTRB - Group
https://t.me/Padasalai_PGTRB
 TNPSC - Group
https://t.me/Padasalai_TNPSC
das
s
as
adwww.Padasalai.Net
ada
P
P
.
.
w
w
ww
ww
a
w.P
ww
g
i.Or
da
ww
a
w.P
.Org
i
a
l
sa
da
a
w.P
ww
g
i.Or
rg
ww
g
da
.Pa
w
w
ww
ww
ww
ww
g
i.Or
a
ad
w.P
rg
i.O
a
l
a
as
ww
rg
i.O
sala
da
a
w.P
w
w
ad
w.P
ww
10
i.O
sala
ww
rg
r
a
a
w.P
rg
lai.O
a
s
ada
.P
w
ww
.Or
lai
asa
da
a
w.P
a
w.P
.Org
i
a
l
sa
ww
ada
.Org
i
a
l
sa
da
a
w.P
w
w
g
i .O r
ad
w.P
i.O
sala
rg
ada
.P
ww
d
.Pa
w
w
w
rg
i.O
sala
.Or
lai.O
a
s
ada
w
da
a
w.P
.Org
i
a
l
sa
ww
g
da
a
w.P
w
w
w
i.O
a
l
a
as
Pad
da
a
w.P
w
w
g
.Or
i
a
l
sa
ada
P
.
w
ww
rg
i.O
sala
.Pa
ww
rg
.O BY
PREPARED
alai
rg
i.O
a
l
a
s
da
ww
.Org
i
a
l
sa
da
a
w.P
rg
i.O
sala
ww
da
a
w.P
.Org
i
a
l
sa
a
ad
w.P
a
w.P
.Or
i
a
l
sa
da
ww
rg
O
.
i
a
sal
da
das
a
a
ada
ada
P
P
P
P
.
.
.
.
w
w
w
w
V.ANTONY
AROCKIA
ww
wwSELVAN M.Sc., M.Ed.,
ww PGDCA., MEDICAL
ww CODER
a
.Or
i
a
l
sa
ww
ww
w
ad
.P
ww
lai
a
s
a
w
rg
i.O
a
l
a
s
SCIENCE
w.
.P
ww
w
rg
ww
.Or
i
a
l
sa
ada
.P
ww
.Or
i
a
l
sa
da
d
a
w.P
w
w
da
a
w.P
rg
i.O
sala
w.P
ww
.Org
i
a
l
sa
ada
w.P
i.O
a
l
a
s
s
ww
Padasalai
ada
g
i.Or
rg
da
a
w.P
rg
w
ada
w.P
ww
ww
a
w.P
da
i.O
sala
.P
ww
.Org
i
a
l
sa
s
rg
rg LEARNING
rg
rg
rg
MINIMUM
MATERIAL
O
O
O
O
.
.
.
.
i
i
i
i
a
a
a
a
sal
sal
sal
sal
i.O
sala
w
g
i.Or
a
w.P
ww
.Org
i
a
l
a
das
i.O
sala
da
ww
i.Or
a
d
.Pa
w
ww
rg
lai.O
a
s
da
a
w.P
g
.Org
i
a
l
sa
s
www.TrbTnpsc.com
ada
ada
w.P
w.P
g
lai
asa
.Or
ad
w.P
ww
rg
.OPG
.Org (9043957609)
.Org
.Org
i
i
i
i
i.Or
ASST.IN
BIOLOGY
a
a
a
a
a
l
l
l
l
l
a
a
a
a
a
s
s
s
s
s
ada
ada
ada
ada
ada
ada
P
P
P
P
P
P
.
.
.
.
.
.
w
w G.K.VIDHYAAwMANDIR
w
w
w
w
MAT.HR.SEC.SCHOOL,
KARUR.
ww
ww
w
ww
ww
ww
g
.Org
.Org
.Org
.Org
.Org
.Or
i.Or
i
i
i
i
i
i
a
a
a
a
a
a
l
l
l
l
l
l
asa
asa
asa
asa
asa
asa
d
d
d
d
d
d
a
a
a
a
a
a
w.P
w.P
w.P
w.P
w.P
w.P
ww
ww
ww
ww
ww
ww
i.Or
i.Or
a
l
a
s
Send Your Questions & Answer Keys to our email id - padasalai.net@gmail.com
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
rg
LESSON
– 12
.Org
.Org
i
i
a
a
lai.O
l
l
a
a
das answer
das
a
a
I. Choose the
correct
P
P
w.
w.
ww
ww
1.gCasparian strips are present
g in the of the root. .Org
r
r
O
O
.
.
c) pericyclelai
lai a) Cortex
lab)i pith
a of
asa is the characteristic
asfeature
2. The endarchad
condition
d
a
.Pleaves
a) Rootww.P
b) stem wwc)
w
w
w
ww
.Org IV. Match the following
.Org
.Org
.Org
i
i
i
i
a
a
a
a
l
l
l
l
a
a
a
a
1. Amphicribal
Dracaena
das
das
das of food
das
a
a
a
a
2.
Cambium
Translocation
P
P
P
P
w.
w.
w.
w.
w
- ww Fern
w3.wAmphivasal
ww
ww
ww
-g
Secondary growth g
g 4. Xylem
r
r
r
rg
O
O
O
O
.
.
.
.
d) endodermis lai
5. Phloem
Conduction
of
water
i
i
i
a
a
a
l
l
l
asa
asa
asa
asa
d
d
d
d
a
a
a
a
.P
.P in a sentence w.P
d) w
flower
V. w
Answer
w.P
w
ww
ww
ww
ww
ww
3. The xylem and phloem arranged side by side on same radius is called
a)rgRadial
b) amphivasal
c) conjoint Org d) None of these Org
rg
.Oanaerobic
i
a
lai.O4. Which is formedsduring
l
lai.
lai.
respiration
a
a
a
s
s
da b) Ethyl alcohol Pa
da
da
a) Carbohydrate
d) Pyruvate
.Pa
. c)Acetyl CoA
.Pa
w
w
w
5. Kreb’s
ww cycle takes place in ww
ww
a) Chloroplast
b) mitochondrial matrix
g
g
r
r
O
O
d) inner mitochondrial
.
.Org membrane lai.Org
i
i
a
a
lai. c) Stomata
l
l
sa
6. Oxygen is produced
?
asa at what point during
aphotosynthesis
asa
d
d
d
a
a
a
.P
.P
.P
a) when ATP
ww is converted to ADP
wwb) when CO2 is fixedwww
w
w
c) when H2O is splitted
d) All of these
1. What is collateralOvascular
bundle?
rg
Org
Org
.
.
.
i
i
i
a
a
a
l
l
l
2. Where does
the carbon that is used insphotosynthesis
come from?
a
asacommon
aand
asa
d
d
d
a
a
a
3. What
is
the
step
in
aerobic
anaerobic
pathway?
w.P
w.P
w.P to release ethyl ww
oxidized
w
w4.wName the phenomenonwbywwhich carbohydrates areww
alcohol.
rg
i.O
a
l
a
s
g
.Or
i
a
l
sa
ada
.Org
i
a
l
sa
Padasalai
rg
.Org
.Org
.Org
i
i
i
a
a
a
lai.OII. Fill in the blanks
l
l
l
a
a
a
das
das
das
a
a
a
P
P
P
w.
w.
w.
1. Cortex
ww lies between __________________.
ww
ww
2. Xylem and phloem occurring on the same radius constitute a vascular
rg called ____________.
rg
rg
rg
bundle
O
O
O
O
.
.
.
.
i
i
i
i
a
a
a
a
l 3. Glycolysis takessplace
l
l
l
a a in _______________.
asa
asa
d
d
d
a
a
a
4. The source
is ________________.
w.P of O2 liberated in photosynthesis
w.P
w.P
w
w
w
w
w
w
5. ________________is ATP factory of the cells
VI. Shortdanswer
questions
a
a
w.P
w
w
w.P
ww
da
a
w.P
w
w
1. Draw and label the structure of oxysomes.
2. Name the three basic
rgtissues system in flowering
rg plants.
O
O
.
.
.Org
i
i
i
a
a
a
3. What is photosynthesis
and
where
in
a
cell
does
it
occur?
l
l
l
a
sa
asa
das
4. What
isdrespiratory
quotient? Pada
a
a
P
P
w.
w.
w.
w5.wWrite the reaction for photosynthesis.
ww
ww
rg
VII. Long answeri.O
questions
da
sala
rg
da
i.O
sala
w
ww
w
ww
da
rg
O
.
i
a
sal
1. Differentiate
the following w.Pa
.Pa
.Pa
w
w
w
wa)wMonocot root and Dicotwroot
ww
b) Aerobic and Anaerobic
rg respiration
O
Org
.
.respiration
.Org
i
i
i
2. Describe and
name
three
stages
of
cellular
that
aerobic
a
a
a
l
l
l
asato obtain energy from
asa
asa
d
d
d
organisms
use
glucose.
a
a
a
.P independent
w.P
w.P
light
ww
w3.wHow does the light dependent
ww reaction differ fromwthe
reaction? What are the end product and reactants in each? Where does each
g
g
g
reaction occur within
i.Orthe chloroplast?
i.Or
i.Or
w
ww
rg
.Org are true or false.laCorrect
.Org the false statementlai.Org
i
i
statements
a
lai.OIII. State whether the
l
asa
asa
asa
d
d
d
a
a
a
.P
1. Phloem
w.P of water in plant.ww.P
w
wwtissue is involved in the
wtransport
w
w
w
ww
2. The waxy protective covering of a plant is called as cuticle.
3.rgIn monocot stem cambium
is present in between xylem
and phloem.
.Orgoccur below upper lepidermis
.Org in dicot root. lai.Org
i
i
a
a
lai.O4. Palisade parenchyma
l
cells
sa
sa
sa
sala
sala
sala
a
a
a
a
a
a
d
d
d
d
d
d
5. Mesophyll
contains chlorophyll. .Pa
a
a
a
a
a
w.Prespiration produceswmore
w ATP than aerobic respiration.
w.P
w.P
w.P
w.P
w
w
w
w
w
w
6. Anaerobic
w
w
w
w
w
w
ww
rg
.Org
.Org
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.O
l
l
l
l
l
l
a
a
a
a
a
sa
das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das
G.K.VIDHYAA
MANDIR
Page 1
a
a
a
a
a
a
P
P
P
P
P
P
.
. Your Questions & w
.
. id - padasalai.net@gmail.com
.
.
Send
Answer
Keys
to
our
email
w
w
w
w
w
w
w
w
w
w
w
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
w
ww
rg
LESSON
– 13
.Org
.Org
.Org IV. Match columns
.OI,rgII and III correctlylai.Org
.Org
i
i
i
i
i
a
a
a
a
a
lai.O
l
l
l
l
l
a
a
a
a
a
a
Membranousadas
das answer
das
das
das
das
a
a
a
a
a
I. Choose the
correct
Organs
Location
P
P
P
P
P
P
w.
w.
w.
w.
w.
w.
w
Covering
ww
ww
ww
ww
ww
ww
ww
Brain
pleura
abdominal cavity
1.gIn leech locomotion is performed
by
g
g
g
g
r
r
r
r
r
rg
rg
O
O
O
O
O
O
O
.
.
.
.
.
.
.
a)
Anterior
sucker
b)
Posterior
sucker
c)
Setae
d)
None
of
the
above
i
i
i
i
i
i
i
a
a
a
a
a
a
a
l
l
l
l
l
al are known as
al
Kidney
capsule
asleech
asa
asa
asa
asmediastinum
asa
2. The segments
of
d
d
d
d
d
d
a
a
a
a
a
a
a) Metameres
c) Strobila d)wAll
w.P (somites) b) Proglottids
w.P
w.Pthe above
w.P
w.P
w.P
w
meninges
enclosed in thoracic
ww
ww
w
ww
ww
ww Heart
ww cavity
3. Pharyngeal ganglion in leech is a part of
a)rgExcretory system
b) Nervous system
Org
Org
.Org
.
.
i
i
i
a
a
a
lai.Oc) Reproductive system
l
l
l
d) Respiratory
asa
asa system
asa
d
a
4. The brain.Pofad
leech lies above the .Pad
w b) Buccal Cavity ww c) Pharynx d) Crop ww.P
a) Mouth
ww
w
w
5. The body of leech has
g
rg
Orsegments
c) 38asegments
d) 30 segments
.Org
.Org
i
i
a
lai.Oa) 23 segments salab)i.33
l
l
6. Mammals ared______________
animals.dasa
a
asa
d
a
a
a
PPoikilothermic
.P
.Pthe above
a) Cold blooded
b) Warm bloodedw.c)
d)w
All
ww
w
w
w
w
w
7. The animals which give birth to young ones are
a)rgOviparous
b) Viviparous
c) Ovoviviparousrg d) All the above
rg
rg
lai.O
Padasalai
i.O
sala
da
II. Fill in the
.Pablanks
w
ww
g
rg
cranial
.Orpericardium
.Ocavity
.Org
i
i
i
a
a
a
l
l
l
asa
asa
asa
d
d
d
a
a
a
w.P
w.P
w.P
w
ww
ww
ww
ww
V. Answer in a sentence
.Org
.Org
.Org
i
i
i
a
a
a
l
l
l
sa
1. Give the
name of the Hirudinaria
acommon
asa granulosa.
asa
d
d
d
a
a
a
.P
2. Write
ofw
rabbit.
w.P the dental formula w
w.P
w
ww
w
ww
ww
Lungs
ww
a
w.P
i.O
sala
da
i.O
sala
da
ww
a
w.P
1. The posterior sucker is formed by the fusion of the ___________ segments.
g
g in the life of an animal
g
g
ofrteeth
i.O2.r The existence of two setsi.O
i.Oris called _____ dentition.i.Or
a has a lobe-like structure
la 3. The anterior endsof
alleech
ala called _____________.
ala
s
s
a
a
a
ad
Pad as _________. w.Pad
4. The blood
habit of leech w
is .known
.Psucking
w
ww
ww waste from the blood w
5. __________
separate nitrogenous
inw
rabbit.
7.rg__________ spinal nervesrgare present in rabbit.
.O
.Org
.Org
i
i
i
a
a
a
lai.O
l
l
l
a Correct the false statement
asathe statements are true
asfalse.
asa
III. Identify whether
or
d
d
d
a
a
a
w.P
w.P
w.P
w
w
w
w
w
w
1. An anticoagulant present in saliva of leech is called heparin.
3. How is diastema formed in rabbit?
4. How does leech suck
rgblood from the host?
lai.O
a
s
da
VI. Short
.Pa answer questions
w
ww
rg
lai.O
a
s
da
a
w.P
w
w
ww
a
w.P
.Org
i
a
l
sa
da
1. Why are the rings of cartilages found in trachea of rabbit?
g
g
2. List out the parasitic
i.Or adaptations in leech. i.Or
sala
da
da
Pa answer questions w.Pa
VII.
w.Long
ww
sala
ww
w
ww
rg
O
.
i
a
sal
ada
P
.
w
ww
w
ww
1. How does locomotion
rg take place in leech?i.Org
O
.
.Org
i
i
2. Explain theamale
oflarabbit with a labeled diagram.
a
la reproductive system a
l
a
das
a
w.P
w
w
das
a
w.P
w
w
s
ww
ada
w.P
w
ww
2.rgThe vas deferens serves torgtransport the ovum.
.O called tympanic membrane
.Org which is movable.
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
eyelid
lai.O3. The rabbit has a sthird
l
l
l
l
l
l
a abetween premolar and
asa teeth in rabbit. adasa
asa
asa
asa
d
d
d
d
4. DiastemaPisaadgap
molar
a
a
a
a
.P
w. hemispheres of rabbit
w.P
w.P
w.P
w.P
w
5. The
cerebral
ofwnerve tissue
ww
ww are connected by band
ww
ww
ww
ww
ww
called corpora quadrigemina.
rg
.Org
.Org
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.O
l
l
l
l
l
l
a
a
a
a
a
sa
das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das
G.K.VIDHYAA
MANDIR
Page 2
a
a
a
a
a
a
P
P
P
P
P
P
.
. Your Questions & w
.
. id - padasalai.net@gmail.com
.
.
Send
Answer
Keys
to
our
email
w
w
w
w
w
w
w
w
w
w
w
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
w
ww
rg
II
LESSON
– 14
.Org
.Org
.Org Section
.Or-g
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.O
l
l
l
l
l
l
1.
Leukemia
Thrombocytes
a
a
a
a
a
a
das answer
das
das
das
das
das
2. Platelets
Phagocyte
a
a
a
a
a
a
I. Choose the
correct
P
P
P
P
P
P
.
.
w.
w.
w.
w.
w
- www
Decrease in leucocytes www
1. Active
wwtransport involves
ww
w3.wMonocytes
ww
ww
4. Leucopenia
Blood Cancer
a) movement of molecules from lower to higher concentration
g
g
g
g
g
r
r
r
r
r
rg
rg
5.
AB
blood
group
Allergic condition
b) expenditure of energy i.O c) it is an uphill task i.O
d) all of the above
O
O
O
O
O
.
.
.
.
.
i
i
i
i
i
a
a
a
a
a
a
a
l 2. Water which is absorbed
l
l
l
l
l
l
6. O blood group
Inflammation
asa by roots is transported
astoa aerial parts of the plant
asa
asa
aofsaantigen
asa
d
d
d
d
d
d
7.
Eosinophil
Absence
a
a
a
a
a
a
through
.P
.P
w.P
w.P
w.P
w.P
w
- www
Absence of antibody www
a) cortex
b) epidermis
d) xylem
ww
ww c) phloem
ww
ww
w8.wNeutrophils
3. During transpiration there is loss of
g of the above
rg
a)rgcarbon dioxide
b) oxygen
c) water
d) rnone
.O
.Org
i
i
a
a
lai.O4. Root hairs are salai.O
l
l
a
asa
asa
d
d
d
a
a
a
a) cortical cell
epidermal
.P cell c) unicellular wd).Pboth b and c
w.P b) projection of requires
ww energy?
5. Which
ww of the following process w
ww
a) active transport
b) diffusion
c) osmosis
d) all of them
g
g
r
r
r
6.
The
wall
of
human
heart
is
made
of
O
O
O
. g
.Org
i
i
a
a
lai. a) Endocardium salab)i.Epicardium c) Myocardium
l
l
d) All of the above
a
asa
asa
d
d
d
a
a
a
7. Which is .the
sequence
of
correct
blood
flow
wP
w.P
w.P
a) ventricle
ww - atrium - vein – arteries
ww b) atrium - ventricle - veins
ww - arteries
c) atrium - ventricle - arteries – vein
d) ventricles - vein - atrium - arteries
g
g
r
r
rg has blood loss. Whichi.Org
8.
A
patient
with
blood
group
O
was
injured
in an accident
O
O
.
.Oand
i
i
a
a
lai. blood group the doctor
l
l
transfusion
in this condition?
sashould effectively use for
sa
sala
a
a
a
d
d
d
a
a
a) O group .Pab) AB group c) A or B.P
d) all blood group
w heart’ is called
w group
w.P
w
w
w
9. ‘Heart
of
w
w
w
a) SA node
b) AV node
c) Purkinje fibres
d) Bundle of His
rgWhich one of the following
rgregarding blood composition
rgis correct
rg
10.
O
O
O
O
.
.
.
.
i
i
i
i
a
a
a
a
l a) Plasma - Blood + sLymphocyte
l
l
l
b) Serum
a a
as-aBlood + Fibrinogen adasa
d
d
a
a
c) Lymph - Plasma
WBC
.P +Platelets
w.P + RBC + WBC wwd).PBlood - Plasma + RBC+
w
II. Fill
in the blanks
ww
w
ww
1. __________ involves evaporative loss of water from aerial parts.
rgWater enters the root celli.O
rg a __________ plasma
rg
through
.Omembrane.
.Org
i
i
a
a
a
lai.O2.
l
l
l
a help to absorb water are
a
3. Structures in roots
asthat
as__________.
asa
d
d
d
a
a
a
4. Normal blood
.P pressure is __________.
w.P ____________ time per
w.P
ww human heartbeat ratewiswabout
5. The
wnormal
ww minute.
III. Match the following
rg I
O
.Org
.Org
.Org
i
i
i
a
a
a
lai. Section
l
l
l
1. Symplastic pathway
Leaf asa
asa
asa
d
d
d
a
a
a
2. Transpiration
.P
w.P
wPlasmodesmata
w.P
3. Osmosis
- ww Pressure in xylem
ww
ww
4. Root Pressure
Pressure gradient
g
g
IV. State whether True
statement
.Orcorrect
i.Or or False. If false write ithe
sala
a
d
a
a
sala
rg
i.O
sala
a
d
ad
1. The.P
phloem is responsible for the
of food.
.Ptranslocation
.Pa
w
w
w
ww
w2.wPlants lose water by the process
ww of transpiration.
3. The form of sugar transported through the phloem is glucose.
ww
w
g
g
g
4. In apoplastic movement
i.Orthe water travels through the
i.Ocellr membrane and enter the cell.
i.Or
Padasalai
la lose water the stoma opens.
5. When guard
sacells
sala
sala
a
a
a
d
d
d
a and stimulation of heart.Pbeat
a take place by nerves. .Pa
6. Initiation
w.P
w
w
w
w
7.
All
veins
carry
deoxygenated
blood.
w
w
ww
8. WBC defend the body from bacterial and viral infections.
rg and tricuspid valves ati.O
9. The closure of thei.O
mitral
thergstart of the ventricular systole
.Org
i
a
a
a
l
l
l
produces theafirst
sa sound ‘LUBB’.
asa
asa
w
ww
d
d
d
.Pa
.Pa
.Pa
w
w
w
w
wV.wAnswer in a word or sentence
ww
ww
ww
1. Name two layered protective covering of human heart.
g blood red ?
rthe
rg
rg
2. Why is the colouri.of
O
O
O
.
.
i
i
a
a
a
l
l
l
asa
asa
asa
d
d
d
a
a
a
VI. Short
.P
w.P answer questionsman
w.P
w
ww
referred to as double circulation?
w1.wWhy is the circulation in w
ww
ww
2. What are heart sounds? How are they produced?
.Org
.Org
.Org
i
i
i
a
a
a
l
l
l
VII. Give reasons
asa for the following statements
asa
asa
d
d
d
a
a
a
1. Minerals
w.P cannot be passively absorbed
w.P by the roots.
w.P
w
w2.wMinerals in the plants arewnotwlost when the leaf falls. ww
ww
3. Mature RBC in mammals do not have cell organelles.
.Org
.Org
.Org
i
i
i
a
a
a
l
l
l
sa
VIII. Long
questions
aanswer
asa
asa
d
d
d
a
a
a
.P leucocytes classified
1. Why
as granulocytes and agranulocytes?
Name
w.P
w.P
w
ww cellare
w
w
weach
w
w
ww
and mention its functions.
rg
.Org
.Org
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.O
l
l
l
l
l
l
a
a
a
a
a
sa
das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das
G.K.VIDHYAA
MANDIR
Page 3
a
a
a
a
a
a
P
P
P
P
P
P
.
. Your Questions & w
.
. id - padasalai.net@gmail.com
.
.
Send
Answer
Keys
to
our
email
w
w
w
w
w
w
w
w
w
w
w
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
rg
LESSON
– 15
.Org
.Org
.Org
i
i
i
a
a
a
lai.O
l
l
l
a
a
a
das answer
das
das
a
a
a
I. Choose the
correct
P
P
P
w.
w.
w.
ww
ww
ww
1.gBipolar neurons are foundgin
r retina of eye
r
rg
rg
O
O
O
O
.
.
.
.
(a)
(b)
cerebral
cortex
i
i
i
i
a
a
a
a
l
l
l
al
asa epithelium adasa
(c) embryo adas
(d) arespiratory
d
.P
2. Site w
forwprocessing
of vision, hearing,
w.Pmemory, speech, intelligence
w.P and
w
ww
ww
thought is
(a)
(b) ear
(d)rglungs
rgkidney
Org(c) brain
O
Org
.
.
.
i
i
i
a
a
a
lai.O3. In reflex action, sthe
l
l
l
reflex arc is formed bysa
a a muscle
a
asa
d
d
d
a
a
a
(a) brain, spinal
cord,
(b)
receptor,
muscle,
spinal
cord
w.P
w.P
w.P
(c) muscle,
ww receptor, brain
ww (d) receptor, spinal cord,
ww muscle
4. Dendrites transmit impulse cell body and axon transmits impulse cell body.
rg
O
from
(b) towards,aaway
.Org
.Orgfrom
.Org
i
i
i
a
a
lai. (a) away from, away
l
l
l
a towards
(c) towards,towards
(d) away
asa
asfrom,
asa
d
d
d
a
a
a
.P
.P
.P
5. The outer
ww most of the three cranial
wwmeninges is
ww
w
w
w
(a) arachnoid membrane
(b) piamater (c) duramater (d) myelin sheath
6.rgThere are pairs of cranial rnerves
and pairs of spinal nerves.
g
O
O
Org
.
.
.21
.Org
i
i
i
i
a
a
a
(b) 31,
12
(c)
12,
13
(d)
12,
la (a) 12, 31
l
l
l
sa
asa carries impulse from
asacentral nervous system
dwhich
dthe
da
7. The neurons
to the
a
a
a
P
P
P
w.
w.
w.
muscle
wwfibre.
ww
ww
(a) afferent neurons
(b) association neuron
g
g
r
r
rg
rg
(c) efferent neuron
(d) unipolar neuron
O
O
O
O
.
.
.
.
i
i
i
i
a
a
a
a
l 8. Which nervous band
l
l
l
asa connects the twoacerebral
asa hemispheres of brain?
asa
d
d
d
a
a
(a) thalamus
.P corpus callosum (d)wpons
.P
w.P (b) hypothalamus ww(c)
w
w
w
w
w
9. Node of Ranvier is found in
(a)
(c) dendrites
rgmuscles (b) axonsi.Org
rg (d) cyton
O
O
.
.
.Org
i
i
i
a
a
la 10. Vomiting centresaislalocated in
l
l
sa
a
asa
d
d
(a) medulla oblongata
(b) stomachada(c) cerebrum (d) hypothalamus
a
a
w.P
w.P
w.P
11. Nerve
ww cells do not possess ww
ww
(a) neurilemma
(b) sarcolemma
(c) axon
(d) dendrites
g
g
g
r
r
r
12. A person who met with
.O an accident lost control
.ofObody temperature, water
.Org
i
i
i
a
a
a
lai.Obalance, and hunger.
l
l
l
a
sa of brain is supposeddto
asaWhich of the following
apart
asbe?
d
d
a
a
a
damaged?w.P
.P
.P
ww
wwhypothalamus
ww oblongata
wcerebrum
w(d)
(a) Medulla
(b)
(c) pons
g
II. Fill in the blanks
i.Or
sala
a
.Org
i
a
l
asa
w
ww
.Org
i
a
l
sa
a
d is the longest cell inPa
d
d
1. __________
.Pa
. our body.
.Pa
w
w
w
w
w2.wImpulses travel rapidlywinw__________ neurons. ww
ww
3. A change in the environment
that causes an animal
g
g to react is called ______
g.
r
r
r
O
O
O
.
.
.
4. __________carries
lai the impulse towards the
lai cell body.
lai
a
a
a
5. The twodantagonistic
component of autonomic
nervous system ared____and_____
.
as
as
das
a
a
a
P
P
P
.
.
.
6.wA
neuron
contains
all
cell
organelles
except
__________
.
w
w
ww
ww
w7. __________maintains the
constant pressure inside w
the cranium.
8. __________and__________
increases the surface
rg
rgarea of cerebrum. i.Org
O
O
.
.
i
i
a
a
l
l
9. The part ofsa
human brain which acts as
sarelay center is __________s.ala
w
ww
da
da
da
.Pa
.Pa
.Pa
w
w
w
w
w State whether true orww
false, if false write the correct
ww statement
ww
wIII.
1. Dendrons are theilongest
.Org fibres that conductlaimpulses
.Org away from the cell lbody.
.Org
i
i
a
a
l
2. Sympathetic
asanervous system is aapart
asofa central nervous system.
asa
d
d
d
a
a
3. Hypothalamus
is the thermoregulatory
centre of human
.P
.P
w.P
wbody.
w
ww actions of our body.
w4.wCerebrum controls the w
ww
ww
voluntary
5. In the central nervous
rg system myelinated fibres
rgform the white matter.i.Org
O
O
.
.
i
i
6. All the nerves
in
the
body
are
covered
and
protected
by meninges.ala
ala
ala
s
s
a
a
7. Cerebrospinal
fluid provides nutrition
d
d to brain.
das
a
a
a
P
P
P
w.
w.
w.
w
w8.wReflex arc allows the rapid
ww response of the body towawstimulus.
ww
Padasalai
rg
lai.O
.Org
i
a
l
sa
rg
i.O
sala
a
G.K.VIDHYAA
ada MAT.HR.SEC.SCHOOL,
PMANDIR
Pad KARUR.
w
w.
rg
i.O
sala
9. Pons helps in regulating respiration.
rg
rg
rg
O
O
O
.
.
.
i
i
i
a
a
a
l
l
l
IV. Matchathe
safollowing
asa
asa
d
d
d
a
a
a
w.P
w.P
w.P
w
ww
ww
ww
ww
Column I rg
Column II rg
.O
.O
.Org
i
i
i
a
a
a
l
l
l
a
A. Nissil’s
Forebrain
asgranules
asa
asa
d
d
d
a
a
a
w.P
w.P
w.P
w
wwB. Hypothalamus
ww Peripheral Nervous system
ww
ww
.Org
.Org
.Org
i
i
i
a
a
a
l
l
l
C. Cerebellum
Cyton sa
asa
a
asa
d
d
d
a
a
a
w.P
w.P
w.P
w
wwD. Schwann cell
ww Hindbrain
ww
ww
.Org
i
a
l
a
das
i.O
sala
ada
a
ada
P
P
P
.
.
.
.
Send
Answer Keys to our w
email
w id - padasalai.net@gmail.com
ww Your Questions &ww
ww
rg
w
.Org
i
a
l
a
das
Page 4
a
P
w.
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
rgUnderstand the assertion
V.
.Org statement.
.Org
.Org
i
i
i
a
a
a
lai.O
l
l
l
a
a
sa
dagiven
das choice
das
a
a
a
Justify the reason
and
choose
the
correct
P
P
P
w.
w.
w.
a. Assertion
is wrong
ww is correct and reason
ww
ww
b.gReason is correct and the assertion
is wrong
g
r
r
rg
rg
O
O
O
O
.
.
.
.
c.
Both
assertion
and
reason
are
correct
i
i
i
i
a
a
a
a
l
l
salreason are wrong dasal
aand
asa
d. Both assertion
d
d
a
a
a
1. Assertion:
w.PCerebrospinal fluid iswpresent
w.P throughout the central
w.Pnervous
ww
w
ww
system.
g no such functions. .Org
Reason:
Cerebrospinal fluid
rg
Orhas
Org
.
.
i
i
i
a
a
a
lai.O2. Assertion: Corpus
l
l
l
a
asacallosum is present aindspace
asa between the duramater
asand
d
a
piamater. .Pad
.P
w
w.P
ww intracranial pressure.
Reason:
wwIt serves to maintain thewconstant
ww
rg
.Org
.Org
.Org
i
i
i
a
a
a
lai.OVI. Short answer squestions
l
l
l
a a
asa
asa
d
d
d
a
a
a
.P
.P
.P
1. Definewstimulus.
w
ww
ww
w
w
w
2. Which acts as a link between the nervous system and endocrine system?
3.rgDefine reflex arc.
O
.
.Org
.Org
.Org
i
i
i
i
a
a
a
la
l
l
l
a
a
a
dasbetween
das
das
VII. Differentiate
a
a
a
P
P
P
w.
w.
w.
ww
ww
ww
a
d
I.Choose
.Pa the correct answer
ww
w
ww
.Org
i
a
l
asa
da
d
a
w.P
.Org
i
a
l
sa
a
w.P
ww
rg
rg
rg
O
O
O
.
.
.
i
i
i
a
a
a
l
l
l
VIII. Long answer
asaquestions
asa
asa
d
d
d
a
a
a
w.P
w.P
w.P
w
w
w
w
w
w
1. With a neat labelled diagram explain the structure of a neuron.
w
ww
1. Gibberellins cause: g
rg
rg
O
O
.Or
.
.
a) Shortening oflagenetically
tall plants
b)
Elongation
of
dwarf
plants
i
i
i
a
a
l
l
a rooting
asof
asa d) Yellowing of ayoung
asaleaves
c) Promotion
d
d
d
a
a
2. The
w.Phormone which has positive
w.P effect on apical dominance
w.P is:
w
ww
wa)wCytokinin b) Auxin ww c) Gibberellin
wd)wEthylene
3. Which one of theOfollowing
hormones is naturally
rg
Org not found in plants:
Org
.
.
.
i
i
i
a
a
a
l
l
l
a) 2, 4-D sab) GA3
c) Gibberellin
d) IAA
a
asbya
asa
d
d
d
a
a
a
4. Avena
coleoptile
test
was
conducted
.P
w.P
w.PWent
w
b) N. Smitwww
c) Paal
d)w
F.W.
w
ww
wa)wDarwin
5. To increase the sugar production in sugarcanes they are sprayed with _____
a) Auxin
b)aCytokinin
c) Gibberellins
.Org
.Org d) Ethylene
.Org
i
i
i
a
a
l
l
l
6. LH is secreted
asa by
asa
asa
d
d
d
a
a
a
.P
a) Adrenal
c) Anterior pituitary
w.P gland b) Thyroid
wgland
w.Pd) Hypothalamus. ww
w7.wIdentify the exocrine gland
ww
ww
w
a) Pituitary gland b)rAdrenal
gland c) Salivaryrggland d) Thyroid gland rg
g
O
.
i
a as both exocrine gland
8. Which organ
well as endocrine gland
lacts
laasi.O
lai.O
a
a
a
s
s
s
a Liver
a) Pancreas
d) Lungs
ada b) Kidney
adc)
ada
P
P
P
.
.
.
w
w
w
ww Gland”?
w9.wWhich one is referred asw“Master
ww
ww
a) Pineal gland b) Pituitary gland c) Thyroid gland d) Adrenal gland
Padasalai
1. Voluntary and involuntary actions.
rg
O
.
i
a
l
g
.Or
i
a
l
sa
LESSON – 16
w
ww
rg
rg
rg
O
O
O
.
.
.
i
i
i
a
a
a
l
l
al
II.Fill in d
the
asblanks
asa
asa
d
d
a
a
a
1. _________
causes cell elongation,
.P
w.P apical dominancewand
w.Pprevents
w
ww
wabscission.
ww
w
ww
2.rgIllustrate the structure andrgfunctions of brain.
abscission
of organs and rg
rg
rg 2. _________ is a igaseous
rg hormone involvedi.in
rg
O
O
O
O
O
O
.
.
.
.
.
i
i
i
i
acceleration ofafruit
la 3. Describe the structure
la of spinal cord.
la
la
la ripening.
la
lai.O
a
a
a
a
a
s
s
s
s
s
s
da
da
da
3. _________
ada causes stomatal closure.
ada
ada
P
P
P
.Pa
.Pa
.Pa
.
.
.
w
w
w
w
w
w
w
w
ww
ww
ww
w4.wGibberellins induce stem
wwelongation in _________wplants.
ww
5. The hormone which has negative effect on apical dominance is _________.
g
g
g
g
g _________.
r
r
r
r
6. Calcium metabolism
.O
.O
.O
.Orgof the body is controlled
.Orby
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.O
l
l
l
l
l
l
a
7. In the islets
_________.
asa
asa
asa
asaof Langerhans, beta acells
assecrete
asa
d
d
d
d
d
d
a
a
a
a
a
8. The
gland is controlled
.P
.P _________.
w.P
w.P
w.P
w.Pgrowth and functionswofwthyroid
wby
w
ww
ww
ww
w9.wDecreased secretion of w
ww leads to ________. ww
thyroid hormones in the children
rg
.Org
.Org
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.O
l
l
l
l
l
l
a
a
a
a
a
sa
das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das
G.K.VIDHYAA
MANDIR
Page 5
a
a
a
a
a
a
P
P
P
P
P
P
.
. Your Questions & w
.
. id - padasalai.net@gmail.com
.
.
Send
Answer
Keys
to
our
email
w
w
w
w
w
w
w
w
w
w
w
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
rg a) Match Column Ii.with
III.
Org Columns II and III
.Org
.Org
i
i
a
a
a
lai.O
l
l
l
a
a
a
das
das
das
a
a
a
P
P
P
.
wI. Column II
wColumn
w.
Column
III
ww
ww
ww
Auxin
Gibberella fujikuroi
Abscission
rg
rg
rg
rg
O
O
O
O
.
.
.
.
i
i
i
i
a
a
a
a
l
l
l
l
asa
asa
asa
d
d
d
a
a
a
w.P Coconut milk
w.P
w.P
Ethylene
ww
ww Internodal elongatin ww
V. Assertion andiReasoning
.Org
sala
a
.Org
i
a
l
asa
w
ww
.Org
i
a
l
sa
a
d
d
ad
Direction:
(A) is
.Pa In each of the following
.Paquestions a statementwof.Passertion
w
w
w
w
w
wgiven and a correspondingwstatement of reason (R) iswgiven just below it.
Mark the correct statement
g as.
r
rg
O
O
.
.Org of A
.
a. If both A andla
Ri are true and R is correctla
explanation
i
i
a
l
sa R are true but R is not
sa correct explanation of
athe
aAsa
b. If both
Aaand
d
d
d
a
a
a
P A and R are false w.P
c. A
d..Both
wis.Ptrue but R is false ww
w1.wAssertion: Application w
ww
of cytokinin to marketed vegetables
can keep them
g
g
fresh for several days.
Or
Or
Org
.
.
.
i
i
i
a
a
a
l
l
l
Reason: Cytokinins
delay senescence ofsleaves
and other organs bysa
asofa nutrients.
a a
d
d
da
a
a
mobilisation
.P
.P
.Pa
w
w
w
w is referred as “Master
wwgland”.
w2.wAssertion (A): Pituitarywgland
Reason (R): It controls the functioning of other endocrine glands.
g sugar levels. .Org
3. Assertion (A):aDiabetes
the
.Org mellitus increases
.Orblood
i
i
a
l
l
a decreases the bloodassugar
a levels.
alai
s
s
Reason (R):Insulin
a
a
d
d
d
w
ww
w
ww
rg
.Otiprg
.Org
.Org
i
i
i
a
a
a
Apical
dominance
lai.OAbscisic acid Coleoptile
l
l
l
asa
asa
asa
d
d
d
a
a
a
w.P Chloroplast
w.P
w.P
w
Cytokinin
ww
ww
ww Ripening
ww
Gibberellins
Fruits
Cell division
rg
.Org
.Org
.Org
i
i
i
a
a
a
lai.O
l
l
l
asa
asa
asa
d
d
d
a
a
a
a
a
a
.P
III. b) Match
states
w.P the following hormones
w.Pwith their deficiencyww
w.P
w.P
w.P
w
w
w
w
w
w
w
w
w
wVI. Answer in a word orwsentence
w
ww
Hormones
rg
rg Disorders
O
O
.
.
.Org
.Org 1. Write the name
.ofOargsynthetic auxin. lai.Org
.Org
i
i
i
i
i
i
a)
Thyroxine
Acromegaly
a
a
a
a
a
la
l
l
l
l
l
a
a
a
sa
asahormone responsibleafor
asa after
das das
dasthe secretion of milkPinadfemale
b) Insulin
Tetany ada
2. What
isdthe
a
a
a
P
P
P
P
P
.
w.
w.
w.
w.
w.
w
c) Parathormone
Simple
ww birth?
ww
ww goitre
ww
wchild
ww
ww
ww
d) Growth hormone Diabetes insipidus
3. Which hormone is secreted during emergency situation in man?
g
g
g
g
r
r
r
r
rg
rg
rg
e)
ADH
Diabetes
mellitus
O
O
O
O
O
O
O
.
.
.
.
.
.
.
i
i
i
i
i
i
i
a
a
a
a
a
a
a
l
l
l
l
l
l
sal questions
VII. Short
asa
asa
asa
aanswer
asa
asa
d
d
d
d
d
d
a
a
a
a
a
a
IV.State w
whether
True or false, If w
false
.P
.P write the correct statement
w.P
w.P
w.P
w.P
w
ww
ww
ww
w1.wWhat is bolting? How can
wwit be induced artificially?
ww
ww
Padasalai
1.gA plant hormone concerned
and promotion
g
r nutrient mobilization iis.Ocytokinin.
rg with stimulation of cell
rdivision
O
O
.
.
.Org
i
i
i
of
a
a
a
la
l
l
l
asaparthenocarpy in tomato.
asa
asa
2. Gibberellinsad
cause
d
d
a
a
.P
w.P flowers and fruits. ww.P
3. Ethylene
leaves,
ww retards senescence of
w
w
w
w
4. Exopthalmic goiter is due to the over secretion of thyroxine.
g four lobes.
5.rgPituitary gland is divided
.Orinto
.Org
.Org
i
i
i
a
a
a
lai.O6. Estrogen is secreted
l
l
l
asa by corpus luteum.adasa
asa
d
d
a
a
w.P
w.P
w.P
ww
ww
ww
rg
lai.O
.Org
i
a
l
sa
rg
i.O
sala
a
G.K.VIDHYAA
ada MAT.HR.SEC.SCHOOL,
PMANDIR
Pad KARUR.
w
w.
rg
i.O
sala
2. Write the differences
exocrine
gland.
rgbetween endocrine and
rg
O
O
.
.
.Org
i
i
i
3. What are the
hormones
secreted
by
posterior
lobe
of
the
pituitary
gland?
a
a
a
l
l
l
a
a
sa
dastissues on which they aexert
dastheir effect.
Mentionathe
ada
w.P
ww
w.P
ww
w.P
ww
VIII. Long answer questions
rg growth stimulating i.Org
1. Describe an experiment
.Org which demonstrates
.Othat
i
i
a
a
l
l
hormone isaproduced
at the tip of coleoptile.
sa
sa
sala
a
a
d
d
d
a
a
a
2. Write
w.P the physiological effects
w.Pof gibberellins.
w.P
w
w
w
w3. Where are estrogens produced?
w
What is the role ofwestrogens in the human
body?
g
g
g
.Or
i
a
l
a
das
i.O
sala
ada
a
ada
P
P
P
.
.
.
.
Send
Answer Keys to our w
email
w id - padasalai.net@gmail.com
ww Your Questions &ww
ww
r
w
w
ww
w
ww
.Or
i
a
l
a
das
Page 6
a
P
w.
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
rg
LESSON
– 17
.Org
.Org
.Org
i
i
i
a
a
a
lai.O
l
l
l
a
a
a
das answer
das
das
a
a
a
I. Choose the
correct
P
P
P
w.
w.
w.
ww
ww
ww
1.gThe plant which propagates
g with the help of its leaves
gis ___________. .Org
r
r
r
O
O
O
.
.
.
b) Neem
Ginger
lai a) Onion
alaitakes c)place
alai d)inBryophyllum
alai
s
s
s
a
a
a
2. Asexual reproduction
through
budding
__________
.
d
d
d
.Pab) Yeast
.Pa
.Pa
a) Amoeba
c)
Plasmodium
d)
Bacteria
w
w
w
ww
ww
ww
3. Syngamy results in the formation of _______ .
g
a)rgZoospores b) ConidiaOrgc) Zygote
d)rChlamydospores
O
Org
.
.
.
i
i
i
a
a
a
lai.O4. The essential parts
l
l
l
a .
asaof a flower are ___________
asand
asa
d
d
d
a
a
a
a) Calyx and
Corolla
b)
Calyx
Androecium
w.P
w.P
w.P
c) Corolla
ww and Gynoecium
ww d) Androecium and Gynoecium
ww
5. Anemophilous flowers have __________ .
g
rg
rg
O
b) Small smooth
.Orstigma
.Org
i
i
a
a
lai. a) Sessile stigma salai.O
l
l
a
c) Colored flower
d) Large
stigma
a
asfeathery
asa
d
d
d
a
a
a
.P in angiosperms arewformed
.P by the division of ___________
.P
6. Male gametes
.
ww
w
ww
w
w
w
a) Generative cell
b) Vegetative cell
c)rgMicrospore mother cell rg
d) Microspore rg
O
O
.
.
.O
.Org
i
i
i
i
a
a
a
la 7 What is true of gametes?
l
l
l
a
a
a
das
dasgive rise to gonads Padas
a) They are P
diploid
b)PThey
a
a
w.
w.
w.
c) They
wwproduce hormones
ww d) They are formed from
ww gonads
8. A single highly coiled tube where sperms are stored, get concentrated and
rg is known as i.Org
rg
rg
mature
O
O
O
.
.
.
i
i
i
a
a
a
a
l a) Epididymis b)sVasa
l
l
sal
deferens
d) Seminiferous
a a efferentia c) Vas
asa
atubules
d
d
d
a
a
a
9. The large
.P are
w.Pelongated cells that provide
w.P nutrition to developing
wsperms
w
w
w
w
w
w
a) Primary germ cells b) Sertoli cells c) Leydig cells d) Spermatogonia
10
rgEstrogen is secreted by
rg
O
Org follicle c) Graffian
.
.Ofollicle
.Org
i
i
i
d)
Corpus
luteum
ai.Primary
a
a
la a) Anterior pituitarysalb)
l
l
athe following is an IUCD?
asa
asa
d
d
d
11. Which oneaof
a
a
w.P
w.P
w.P
a) Copper
b) Oral pills
ww – T
ww c) Diaphragm
wd)wTubectomy
w
ww
4. Fertilization is __________
in humans. .Org
.Org
.Org
i
i
i
a
a
a
l
l
l
a of the embryo occurs
aat about ______ day ofafertilization.
5. The implantation
sa
das is the first secretionPafrom
dasthe mammary glandPafter
d child
a
a
6. _________
birth.
P
.
.
.
w
w
w
w
w
w
produced by ___________w
.
w7. Prolactin is a hormone w
rg
rg
O
III. (a) Match the
lai.following
sa
da
.Pa
ww
Fission
.Org
i
Budding
a
l
asa
d
a
Fragmentation
.P
ww
w
da
a
w.P
.P 2
wColumn
w Column 1
ww
lai.O
a
s
ada
ww
w
rg
O
.
i
a
sal
w
ww
Spirogyra
rg
Amoeba alai.O
as
Pad
.Yeast
w
ww
ww
rg
i.O
sala
ada
.P
ww
ww
w
w
III. (b) Match the following
terms with their respective
meanings
g
g
.Or
.Org
i
i
a
a
l
l
a
asa pregnancy and birth
asa
a) Parturition
- 1) Duration
between
d
d
d
a
a
a
.P
.P
b) Gestation
- 2) Attachment
of zygote to endometrium
w.P
w
ww
ww
wc)wOvulation
w
w
ww
- 3) Delivery of baby from uterus
d) Implantation
follicle
rg
.Org- 4) Release of egg lfrom
.OGraafian
.Org
i
i
i
a
a
a
l
l
a
sa
asa the following statements
dwhether
das
daCorrect
a
a
a
IV. State
are
True
or
False.
the
P
P
P
w.statement
w.
w.
w
w
w
w
false
w
w
w
ww
r
i.O
a
l
a
s
Padasalai
g
g
g
1. Stalk of the ovule
i.Oisr called pedicle. alai.Or
i.Or
a
a
l
l
a
a
2. Seeds are
reproduction.
dasthe product of asexual
das
das
a
a
a
P
P
P
3. Yeast
w. reproduces asexually
wby. means of multiple fission.
w.
w4.wThe part of the pistil which
ww serves as a receptive structure
ww for the pollen is
called as style.
g
rg
Ordry
.O
.by
.Org
i
i
i
a
a
a
l
l
l
5. Insect pollinated
flowers
are
characterized
and
smooth
pollen.
sa
asaproduce gametes which
aare
asa
d
d
d
6. Sex
organs
diploid.
a
a
a
w.P
w.P
w.P
w7.wLH is secreted by the posterior
ww pituitary.
ww
8. Menstrual cycle ceases during pregnancy.
9. Surgical methods
Org formation.
.Oofrgcontraception prevent
.gamete
.Org
i
i
i
a
a
a
l
l
l
a
a
10. The increased
is responsible
asa level of estrogenaand
asprogesterone
asfor
d
d
d
a
a
menstruation.
w.P
w.P
w.P
w
ww
w
ww
rgFill in the blanks i.Org
II.
.Org
.Org
i
i
a
a
a
lai.O
l
l
l
asa
asa
asa
d
d
d
a
a
a
1. The embryo
the time of fertilization w
is .__________
.
P
w.P sac in a typical dicot
wat.P
w
wwfertilization the ovary develops
ww into ___________w. w
ww
ww
ww
ww
2. After
3.gPlanaria reproduces asexually
r
rg by ___________ .i.Org
O
O
.
.
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
la
l
l
l
l
l
l
a
a
a
a
a
sa
das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das
G.K.VIDHYAA
MANDIR
Page 7
a
a
a
a
a
a
P
P
P
P
P
P
.
. Your Questions & w
.
. id - padasalai.net@gmail.com
.
.
Send
Answer
Keys
to
our
email
w
w
w
w
w
w
w
w
w
w
w
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
rgAnswer in a word ori.O
rg
V.
sentence
.Org
.Org
i
i
a
a
a
lai.O
l
l
l
a
a
a
das of endosperm. Padas
das
afunction
a
1. Mention.the
P
P
w
w.
w.
2. Name
ww the hormone responsible
wwfor the vigorous contractions
ww of the uterine
muscles.
rgWhat is the enzyme present
rg in acrosome of sperm?
rg
rg
O
O
O
O
.
.
.
.
3.
i
i
i
i
a
a
a
a
l
l
l
l
asa
asa
asa
d
d
d
a
a
a
.P
VI. Short
question
wanswer
w.P
w.P
ww
ww
ww
1.rgHow does binary fission
rg from multiple fission?
.Odiffer
.Org
.Org
i
i
i
a
a
a
lai.O2. Define triple fusion.
l
l
l
asa How milk production
aissahormonally regulated?
asa
d
d
d
a
a
a
3. What is colostrum?
.P
.P
w.P
wwits nourishment insideww
3. How
thewmother's
wwdoes developing embryowgets
body?
rg
O
testes
.Orglocated outside the abdominal
.Org cavity? Name thelai.Org
i
i
a
a
lai. 4. Why are the human
l
l
pouch in whichdthey
asaare present.
asa
asa
d
d
a
a
a
w.P
w.P
w.P
ww
ww
ww
g
.Or
i
a
l
sa
LESSON – 18
da
ww
.Org
i
a
l
sa
da
d
a
a
I. Choose
w.P the correct answerw.P
ww
.Org
i
a
l
asa
a
w.P
ww
1. According to Mendel
rg alleles have the following
rgcharacter
rg
O
O
O
.
.
.
i
i
i
a) Pair of genes
b)
Responsible
for
character
a
a
a
l
l
l
asaof gametes
asa factors
asa
c) Production
d) Recessive
d
d
d
a
a
a
P
.P
.P
toww.
w9w: 3 : 3 : 1 ratio is due w
ww
w2.
w
a) Segregation
b) Crossing over
g
c) Independent assortment
d) Recessiveness
.Or
.Org
.Org
i
i
i
a
a
a
l
l
l
a spindle fibres get attached
3. The region
of the chromosome where
asa
asthe
asa during
d
d
d
a
a
a
cell division
.P
w.P
w.P d) Chromonema
ww
b) w
Centrosome
c) Centromere
ww
wa)wChromomere
4. The centromere is found
___________
chromosome. g
rg at the centre of thei.O
rg
.Or
a) Telocentric lab)i.O
Metacentric c) Sub-metacentric
d)
Acrocentric
i
a
a
l
l
a
sa
asa
abackbone
5. The _____________
units form a
the
of the DNA. adas
d
d
a
.P sugar b) Phosphate
.P
.P
a) 5wcarbon
ww c) Nitrogenous bases
wwd) Sugar phosphate
w6.wOkasaki fragments are w
w
joined together by ___________________.
g
g d) DNA ligase .Org
a) Helicase b) DNA
c) RNA primer
.Orpolymerase
.Orbeings
i
i
a
a
l
l
7. The number
of
chromosomes
found
in
human
are ______________.
a
a
alai
s
s
s
a
a
a
d
d
a) 22.pairs
Pad of autosomes and 1wpair
.Paof allosomes.
.Pa
w
w
wb)w22 autosomes and 1 allosome
ww
ww
c) 46 autosomes
d) 46 pairs autosomes and 1 pair of allosomes.
g chromosome
r
rg is called ___________.
rg
O
O
O
8. The loss of one
or
more
in aaploidy
.
.
.
i
i
i
a
a
l
al
sal
a) Tetraploidy
b) Aneuploidydasa c) Euploidy
das
dd)apolyploidy
Padasalai
VII. Long answer questions
w
ww
w
ww
w
ww
ww
w
w
ww
rg
rg
Orgchanges in the ovarylai.Org
.O
.the
i
i
a
a
of
menstrual
cycle?
Indicate
lai.O1. What are the phases
l
l
a
a
sa
das
das
and uterus. Pada
a
a
P
P
w.
w.
w.
w
ww
ww
ww
ww
rg
rg
rg
rg
O
O
O
O
.
.
.
.
i
i
i
i
a
a
a
a
l
l
l
l
asa
asa
asa
d
d
d
a
a
a
.P
.P
.P
.Pa
.Pa
.Pa
w
w
w
w
w
w
w
w
ww
ww
ww
wII.
ww
ww
ww
Fill in the blanks
rg
rg
.Org
.Org
.Org 1. The pairs of contrasting
.Org character (traits)laofi.O
.Org
i
i
i
i
i
a
a
a
a
a
Mendel
are
called
_________.
lai.O
l
l
l
l
l
sa
asa
asa
asa
aexpression
asa_________
asa
d
d
d
d
d
d
2.
Physical
of
a
gene
is
called
a
a
a
a
a
a
.P
w.P
w.P
w.P
w.P
w.P
ww
each cell are called__. www
ww
ww
ww
w3.wThe thin thread like structures
ww found in the nucleuswof
4. DNA consists of two ____________ chains
g
g
g
g
r
r
r
r
5. An inheritable change
O
O
O
O
Org of a gene or a lai.Org
.
.
.
.Org in the amount or the
.structure
i
i
i
i
i
a
a
a
a
a
lai.
l
l
l
l
l
chromosome
asa
asa
asa
asisa called _______________.
asa
asa
d
d
d
d
d
d
a
a
a
a
a
a
w.P
w.P
w.P
w.P
w.P
w.P
w
ww
ww
ww
ww
ww
ww
ww
rg
lai.O
.Org
i
a
l
sa
rg
i.O
sala
a
G.K.VIDHYAA
ada MAT.HR.SEC.SCHOOL,
PMANDIR
Pad KARUR.
w
w.
rg
i.O
sala
.Org
i
a
l
a
das
i.O
sala
ada
a
ada
P
P
P
.
.
.
.
Send
Answer Keys to our w
email
w id - padasalai.net@gmail.com
ww Your Questions &ww
ww
rg
w
.Org
i
a
l
a
das
Page 8
a
P
w.
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
rg Identify whether the
rg
III.
are True or False.
.Ostatement
.Org Correct the false lai.Org
i
i
a
a
lai.Ostatement
l
l
a
a
a
das
das
das
a
a
a
P
P
P
.
.
w.
ww Mendelian dihybridwratio
wwof F2 generation is 3:1.
1. A w
typical
ww
2.gA recessive factor is altered
g by the presence of a .dominant
g factor.
r
r
r
rg
O
O
O
O
.
.
.
3.
Each
gamete
has
only
one
allele
of
a
gene.
i
i
i
i
a
a
a
a
l
l
l
l
asa from a cross between
asagenetically different aparents.
asa
4. Hybrid is anad
offspring
d
d
a
P chromosomes have an
P
5. Some
of
knob-like appendage
w.the
w.elongated
w.P known
ww
ww
ww
as telomere.
g
6.rgNew nucleotides are added
of DNA is
Organd new complementary
Orstrand
Org
.
.
.
i
i
i
a
a
a
lai.Oformed with the help
l
l
l
enzyme DNA polymerase.
sa
asaof
awith
asa
d
d
d
a
a
a
7. Down’s .syndrome
is
the
genetic
condition
45
chromosomes.
P
.P
.P
ww
ww
w
ww
w
w
IV. Match the following
rg
lai.O
.Org
i
a
l
sa
.Org
i
a
l
sa
.Org
i
a
l
sa
2. How is the structure
.Orgof DNA organised?laWhat
.Orgis the biological significance
.Org
i
i
i
a
a
l
l
of DNA? asa
sa
asa
dof the new born child P
dmatter
daof
a
a
a
3. The
sex
is
a
of
chance
and
neither
the
P
P
.
.
.
w
w
w
w
w
w
wparents may be consideredwresponsible for it. What would
w be the possible
fusion of gametes to determine
the
sex
of
the
child?
g
g
g
.P
ww
lai
asa
.Or
.Or
ad
ad
ad
w
rg
ada
.P
ww
rg
rg
i.O
sala
i.O
sala
ada
.P
ww
w
i.O
a
l
a
s
w
ww
w
rg
lai.O
a
s
ada
.P
ww
lai
asa
.P
ww
w
ww
w
g
.Or
i
a
l
sa
ada
V. Answer
ww in a sentence
ww
ww
1. A garden pea plant produces axial white flowers. Another of the same
rg produced terminal
rg flowers. Identify the
rg
rg
species
violet
dominant
trait?
O
O
O
O
.
.
.
.
i
i
i
i
a
a
a
a
l 2. Name the bond which
al binds the nucleotides
al
al
das
dasin a DNA.
das
ww
a
ad
w.P
a
w.P
a
w.P
da
w
a
w.P
rg
lai.O
a
s
da
da
a
w.P
w
a
w.P
w answers questions w
w
VI. Short
1.rgWhat do you understand by
g
rg the term phenotype and
rgenotype?
O
O
O
.
.
.
.Org
i
i
i
i
a
a
a
la 2. What are allosomes?
l
l
l
asafragments?
asa
asa
d
d
d
3. What are Okazaki
a
a
a
w.P
w.P
w.P
4. Explain
ww the structure of a chromosome.
ww
ww
w.P
ww
a
w.P
i.O
sala
a
w.P
w
w
ww
ww
da
.Pa
w
ww
rg
w.P
ww
ada
i.O
sala
a
w.P
da
w
ww
rg
O
.
i
a
sal
ada
P
.
w
ww
rg
w
ww
rg
i.O
sala
i.O
sala
ada
w.P
ww
ww
.Org
i
a
l
sa
rg
i.O
sala
w
ww
rg
rg
da
a
w.P
da
a
w.P
lai.O
a
s
da
w
.Org
i
a
l
sa
Padasalai
ada
P
.
w
ww
w
ww
.Or
lai
asa
.P
ww
w
1. Autosomes da
Trisomy
da 21
da
a
a
a
P
P
P
.
.
.
2. Diploid
wcondition
w
ww9:3:3:1
ww
ww
3. Allosome
-w
22 pair of chromosome
4.rgDown’s syndrome
2n
g
rg O
O
.
.
.Org
i
i
i.Or
i
a
23rd pairsa
oflachromosome
la 5. Dihybrid ratio sala
l
sa
w
w
ww
w
da
.Pa
w
w
w
ww
rg Long answer questions
VII.
.Org
.Org
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.O
l
l
l
l
l
l
asa
asa
asa
asa
asa
asa
d
d
d
d
d
d
a
a
a
a
a
a
1. Explain
.P an example the inheritance
wwith
w.P of dihybrid cross.wHow
w.Pis it
w.P
w.P
w.P
w
ww from monohybrid cross?
ww
w
ww
ww
ww
ww
different
rg
.Org
.Org
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.O
l
l
l
l
l
l
a
a
a
a
a
sa
das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das
G.K.VIDHYAA
MANDIR
Page 9
a
a
a
a
a
a
P
P
P
P
P
P
.
. Your Questions & w
.
. id - padasalai.net@gmail.com
.
.
Send
Answer
Keys
to
our
email
w
w
w
w
w
w
w
w
w
w
w
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
g
.Org
i
a
l
sa
w
ww
rg
rg look similar and perform
rg
organs
.Org 2. The homologous
.O
.Org similar functionslabut
.Othey
i
i
i
i
a
a
a
l
l
l
a
aorigin and developmental
a
a
have different
pattern.
da
da
das
dasevolved from reptiles.
das
das
a
a
a
a
a
a
3.
Birds
have
P
P
P
P
P
P
w.
w.
w.
w.
w.
w.
w
LESSON
ww – 19
ww
ww
ww
ww
ww
ww
g
g
g
g IV. Match the following
r
r
r
r
rg
rg
rg
O
O
O
O
O
O
O
.
.
.
.
.
.
.
i
i
i
i
i
i
i
I.
Choose
the
correct
answer
Column
A
Column
B
a
a
a
a
a
a
a
l
l
l
l
l
l
l
asa
asa
asa
asa
asa
asa
a) Atavism
caudal
vertebrae
and vermiformad
appendix
d
d
d
d
d
a
a
a
a
a
.P
.P
.P
.P
1. Biogenetic
b)
a forelimb
of a cat and a w
bat’s
w.P organs
w.Pwing
w
ww law states that ______________
ww
ww
wVestigial
ww
w
w
w
w
ww
w
w
a. Ontogeny and phylogeny go together
c) Analogous organs
rudimentary tail and thick hair on the body
b.rgOntogeny recapitulatesO
a wing of a bat and
rg
Org
Org d) Homologouslorgans
Org
Orga wing of an insect lai.Org
. phylogeny
.
.
.
.
i
i
i
i
i
a
a
a
a
a
lai.Oc. Phylogeny recapitulates
l
l
l
l
ontogeny
e) Wood parksa
radiocarbon
a
asa
asand
asa
a
asadating
asa
d
d
d
d
d
d
a
a
a
a
a
a
d. There is .no
relationship
between
phylogeny
ontogeny
f
)
W.F.
Libby
Thiruvakkarai
P
w and
w.P
w.P
w.P
w.P
w.P
w
2. The
‘use
disuse theory’ was
ww
ww
ww
ww
ww
wwproposed by ______________.
ww
a. Charles Darwin
b. Ernst Haeckel
V. Answer in a word or sentence
g
g
g
g
r
r
r
r
O
O
O
O
d. Gregor Mendel
.
.
.
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai. c. Jean Baptiste Lamarck
l
l
l
l
l
l
sa with
sa fossil bird?
3. Paleontologists
1. Which dorganism
adeal
asa
asa
asa is considered toabe
athe
asa
d
d
d
d
d
a
a
a
a
a
a. Embryological
w.P evidences
wb..PFossil evidences ww.P
w.P
w.P
w.P
w
ww
ww
w
ww
ww
ww
ww
r
lai.O
i.O
sala
Padasalai
c. Vestigial organ evidences
d. All the above
4.rgThe best way of direct dating
fossils
of recent originris
g by
rg
O
O
O
.
.
.
.Org
i
i
i
i
a
a
a
b.
Uranium
lead
method
la a. Radio-carbon method
l
l
l
a
a
sa
dasmethod
da(a)
das
c. Potassium-argon
d.PBoth
and (c)
a
a
a
P
P
w. Ethnobotany was coined
w.
w.
5. The
term
ww
ww by
ww
a. Khorana
b. J.W. Harsbberger
g
g
g
g
r
r
d. Hugo de Vries
i.Oc. Ronald Ross
i.O
i.Or
i.Or
VI. Short answers questions
Org
Org
Org
.
.
i.
1. Why is Archaeopteryx
considered to sbealaaconnecting
link?
alai
alai
s
s
a
a
a
d you determine the age
2. How
Pacan
Paofdthe fossils?
Pad
w.
w.
ww
ww
ww
VII Long answer questions
w.
w
ww
rg
rg
rg
O
O
O
.
.
.
i
i
i
a
a
a
l
l
l
1. Naturaldselection
for
a
a
asa is a driving force
asaevolution-How? adasa
d
d
d
a
a
a
a
2. How
organs from analogous
.P blanks
II. Fill inwthe
w.P
w.P
w.P do you differentiatewhomologous
w.P
w.P organs?
w
ww
ww
ww
ww
w
ww
ww
1.rgThe characters developedrby
g the animals during their
rglife time, in response i.Org
O
O
O
.
.
.
.Org
.Org
.Org
i
i
i
i
i
i
changes
are
called
______________.
a
a
a
a
a
a
la to the environmental
l
l
l
l
l
l
sa non-functional organs dfound
aand
asain an organism are called____.
asa
asa
asa
asa
2. The degenerated
d
d
d
d
d
a
a
a
a
a
a
.P organs.
.P
.P
.P
w.P of bat and humanware
w.P
3. The w
forelimbs
examples of ______________
ww
ww
ww
ww
ww
w
w
w
w
w
w
w
4. The theory of natural selection for evolution was proposed by __________.
rg
.Org
.Org
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.OIII. State true or sfalse.
l
l
l
l
l
l
statements
a a Correct the false
asa
asa
asa
asa
asa
d
d
d
d
d
d
a
a
a
a
a
a
.P
.P
w.P
w.P
w.P
w.P
w
ww was postulated by w
ww Darwin.
1. The
use and disuse theory of w
organs’
Charles
ww
ww
ww
ww
ww
la
sala
rg
lai.O
.Org
i
a
l
sa
ala
s
a
ad
rg
i.O
sala
a
G.K.VIDHYAA
ada MAT.HR.SEC.SCHOOL,
PMANDIR
Pad KARUR.
w
w.
sala
rg
i.O
sala
.Org
i
a
l
a
das
i.O
sala
ada
a
ada
P
P
P
.
.
.
.
Send
Answer Keys to our w
email
w id - padasalai.net@gmail.com
ww Your Questions &ww
ww
rg
w
.Org
i
a
l
a
das Page 10
a
P
w.
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
r
lai.O
g
.Org
i
a
l
sa
rg
da
a
w.P
LESSON
ww – 20
ww
a
w.P
i.O
sala
da
.Org
i
a
l
sa
g
a
ad
w.P
ww
da
ww
rgChoose the correct answer
rg
rg
rg
O
O
O
O
.
.
.
.
i
i
i
i
I.
a
a
a
a
l
l
l
al
aofsacrop improvement can
aspractised
asisa
1. Which method
be
by a farmeraifdhe
d
d
a
a
inexperienced?
w.P
w.P
w.P
ww
ww
ww
.Or
i
a
l
sa
a
w.P
a
w.P
.Org
i
a
l
sa
da
d
ww
II. Fill in the blanks
.Org
i
a
l
asa
w
ww
a
w.P
w
ww
ww
g
rg
rg
O
O
.
.
i
i
a
a
l
sal superior quality aredraisedby____.
a important crop plants
awith
asa
1. Economically
d
d
a
a
a
P
.P
.P
2.wA
rich wheat variety
w.protein
w
wwis ________.
ww
w
ww
w
w
a. clonal selection b. mass selection c. pureline selection d. hybridisation
3. __________is the chemical used for doubling the chromosomes.
2.rgPusa Komal is a diseaseOresistant
variety of _________.
plants
rg
rg enriched with desirable
Org
Org 4. The scientificlaprocess
Org which produces crop
O
Org
.
.
.
.
.
.
i
i
i
i
i
i
a
a
a
a
a
lai.Oa. sugarcane
l
l
l
l
l
b. rice
c. cow pea
maize
nutrients is called
__________.
a
asa by
asa d.
asa
asa grows
assoil,
asavariety
d
d
d
d
d
d
a
a
a
a
a
a
3. Himgiri .developed
hybridisation
and
selection
for
disease
resistance
5.
Rice
normally
well
in
alluvial
but
_________
is
a
rice
.P
wP
w.P
w.P
w.P
w.P
w
ww
against
by mutation breeding
ww soil.
ww
wproduced
ww that grows well in saline
wwrust pathogens is a variety
wwof __________.
ww
6. __________ technique made it possible to genetically engineer living organism.
a. chilli
b. maize
c. sugarcane d. wheat
g
g
g
g
r
r
r
r
7. Restriction endonucleases
cut the DNA molecule
O
O
O
O
. saved millions of liveslaand
. celebrated its 50th lai.
.Org
.Org at specific positions
.Org
i
i
i
i
i
a
a
a
a
lai. 4. The miracle riceswhich
l
l
l
l
known asd__________.
birthday is _______
a a
asa
asa
asa
asa
asa
d
d
d
d
d
a
a
a
a
a
a
8. Similar
a. IR 8 w.P
b. IR 24
wc..PAtomita 2 d. Ponniww.P
w.P DNA fingerprinting
wis.Pobtained for __________.
w.P
w
w
ww
ww
w
w9.w__________ cells are undifferentiated
ww
w
ww
mass of cells.
i.Or
a
l
a
s
Padasalai
5. Which of the following is used to produce products useful to humans by
biotechnology
techniques? rg
rg
O
Org
.
.O
.organism
.Org
i
i
i
i
a
a
a
b.
live
la a. enzyme from organism
l
l
l
a
a
sa
dad.s both (a) and (b) Padas
c. vitamins Pada
a
P
.
.
w.
6. We
wwcut the DNA with thewhelp
wwof
wcan
ww
a. scissors
b. restriction endonucleases c. knife
d. RNAase
g
g
g
r
r
r
rg
7. rDNA is a
O
O
O
O
.
.
.
.
i
i
i
i
a
a
a
a
l a. vector DNA sal
l
sal
b. circularda
DNA
a
asa
d
d
a
a
a
c. recombinant
d. satellite
w.P of vector DNA andwdesired
w.P DNA
w.P DNA
w
w
w
w
w
8. DNA fingerprinting is based on the principle of identifying --------------sequences
of DNA
rg
O
Org
.
.Org d. repetitive lai.Org
i
i
c. polymorphic
a
la a. single stranded salab.i.mutated
l
a
a modified endogenousagene
asor
asa
d
d
d
9. Organisms a
with
a foregin gene are a
also
w.P
w.P
w.P
known
wwas
ww
ww
(a) transgenic organisms
(b) genetically modified
g
g
r
r
(c) mutated
(d) both a andi.O
b rg
.O
.Org
i
i
a
a
a
lai.O10. In a hexaploid swheat(
l
l
l
(n) and the basic(x)
sa
a a 2n = 6 x = 42 )athe
ahaploid
asa
d
d
d
a
a
number of
respectively
P
.P
wchromosomes
w.are
w.P
ww b. n = 21 and x = 21 ww
a. n =w7wand x = 21
c.gn = 7 and x = 7
d. n = 21 and x = 7g
g
g
r
lai.O
.Or
i
a
l
sa
r
i.O
sala
a
G.K.VIDHYAA
ada MAT.HR.SEC.SCHOOL,
PMANDIR
Pad KARUR.
w
w.
r
i.O
sala
10. In gene cloning the
rgDNA of interest is integrated
rg in a __________.
lai.O
a
s
da
.Org
i
a
l
sa
lai.O
a
s
da
a
a
ada
P
P
P
.
.
.
w If false, write the correct
w
w
false.
wwState whether true orww
wIII.
ww statement
ww
rg by colchicine treatment.
rg
1. Raphano brassica .is
arg
man-made tetraploid produced
O
O
O
.
.
i
i
i
a
a
a
l
l
2. The process
sal
asaof producing an organism
asawith more than two asets
aof
d
d
d
a
a
chromosome
is called mutation..P
w.P
w
w.P
w
w3.wA group of plants produced
ww from a single plant through
ww vegetative or
ww
asexual reproduction are
g called a pureline.
r
rg
rg
O determines the protein
4. Iron fortified rice
quality of the cultivated plant
lai.variety
lai.O
lai.O
5. Goldendrice
asais a hybrid.
asa
asa
d
d
a
a
a
P from bacteria can kill
6. Bt
insects.
w.gene
w.P
w.P
w7.wIn vitro fertilisation means
wwthe fertilization done inside
ww the body.
8. DNA fingerprintingrgtechnique was developed rby
Alec Jeffrey.
.O refers to DNA ligases.
.O g
.Org
i
i
i
a
a
a
l
l
l
9. Molecularsscissors
a
sa
sa
ww
ada
P
.
w
.Org
i
a
l
a
das
da
a
ad
w.P
a
w.P
w
w
ww
i.O
sala
ada
a
ada
P
P
P
.
.
.
.
Send
Answer Keys to our w
email
w id - padasalai.net@gmail.com
ww Your Questions &ww
ww
w
ww
rg
w
w
ww
.Org
i
a
l
a
das Page 11
a
P
w.
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
g
.Org
i
a
l
sa
w
ww
rg
.Org 2. Distinguish between
.Org
.Org
.Org
i
i
i
i
a
a
a
a
l
l
l
l
a
a therapy and germ line
agene therapy
a
a. somatic
gene
da
da
das
das
das
das
a
a
a
a
a
a
b.
undifferentiated
cells
and
differentiated
cells
P
P
P
P
P
P
.
w.
w.
w.
w.
w.
w
ww fingerprinting technique.
IV. Match
ww the following
ww
w3.wState the applications ofwDNA
ww
ww
ww
g
g
g
g 4. Differentiate between
g outbreeding and inbreeding.
r
r
r
r
r
rg
rg
O
O
O
O
O
O
O
.
.
.
.
.
.
.
i
i
i
i
i
i
i
Column
A
Column
B
a
a
a
a
a
a
a
l
l
l
al
al
al
sal
asa
aanswers
asa
1. Sonalika adas Phaseolus mungo adas
VIII. Long
questions adas
d
d
d
a
a
a
.P
.P
.P
.P
.P
2. IR 8ww.P
Sugarcane
w
ww
ww
ww
ww
ww
w
w
w
w
ww
w
w
3. Saccharum
Semidwarf wheat
1. Describe mutation breeding with an example.
4.rgMung No. 1
Ground
Org nut
Org
Org 2. With a neat labelled
Orgdiagram explain thelatechniques
Org involved in gene
Org
.
.
.
.
.
.
i
i
i
i
i
i
a
a
a
a
a
lai.O5. TMV – 2
l
l
l
l
l
Rice
cloning.
asa Semi-dwarf
asa
asa
asaimportance of biotechnology
asa in the field of medicine.
asa
d
d
d
d
d
a
a
a
a
a
6. Insulin .Pad
Bacillus thuringienesis
3.
Discuss
the
w.P
w.P
w.P
w.P
w.P
w
ww
7. Btw
toxin
Beta carotene
ww
ww
ww
ww
ww
ww
r
lai.O
8. Golden rice
rg
lai.O
i.O
sala
first hormone produced using rDNA technique
.Org
i
a
l
sa
.Org
i
a
l
sa
.Org
i
a
l
sa
g
.Or
i
a
l
sa
ada
.Org
i
a
l
sa
Padasalai
V. Understanddthe
and
a assertion statement,ajustify
da the reason givenPa
da
a
P
P
.
.
.
choosewthecorrect
choice
w
ww
ww
w
rg
i.O
a
l
a
s
w
w
ada
P
.
w
ww
w.P
ww
da
ww
a
w.P
w
ww
a.rgAssertion is correct and reason
rg is wrong
rg
O
O
.
.
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
la b. Reason is correctsaand
la the assertion is wrongsalai.O
l
l
l
l
a
a
a
a
daand reason is correct Pada
das
das
das
das
c. Both assertion
a
a
a
a
a
P
P
P
P
P
w.
w.
w.
w.
w.
w.
w
d. Both
wwassertion and reason is wrong.
ww
ww
ww
ww
ww
ww
1. Assertion: Hybrid is superior than either of its parents.
rg
rgupon inbreeding. i.Org
rg
rg
rg
rg
Reason:
Hybrid vigour isi.O
lost
O
O
O
O
O
.
.
.
.
.
i
i
i
i
i
a
a
a
a
a
a
a
l 2. Assertion: Colchicine
l
l
l
l
l
l
asa reduces the chromosome
asa number.
asa
asa
asa
asa
d
d
d
d
d
d
a
a
a
a
a
a
P chromatids to the opposite
Reason: It
the movement of
.P
wpromotes
w.sister
w.P poles.
w.P
w.P
w.P
w
w
w
w
w
w
w
w
w
w
w
w
w
ww
3. Assertion: rDNA is superior over hybridisation techniques.
Reason:
Desired genes are inserted
without introducingrgthe undesriablegenes
rg
rg
O
O
.
.
.O
.Org
.Org
.Org
.Org
i
i
i
i
i
i
i
a
a
a
a
a
la in target organisms.sala
l
l
l
l
l
a
asa
asa
asa
asa
asa
d
d
d
d
d
d
a
a
a
a
a
a
w.P
w.P
w.P
w.P
w.P
w.P
w
VI. Answer
ww in a sentence
ww
ww
ww
ww
ww
ww
1. Give the name of wheat variety having higher dietary fibre and protein.
2.rgDefine genetic engineering.
.Org
.Org
.Org
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.O3. What are transgenic
l
l
l
l
l
l
asa organisms?
asa
asa
asa
asa
asa
d
d
d
d
d
d
a
a
a
a
a
a
.P
.P
w.P
w.P
w.P
w.P
w
ww answers questions www
ww
ww
ww
ww
ww
VII. w
Short
1.gName two maize hybrids rich
r
rg in amino acid lysine
O
O
.
.
.Org
.Org
.Org
.Org
.Org
i
i
i
i
i
i
i
a
a
a
a
a
a
la
l
l
l
l
l
l
a
a
a
a
a
sa
das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das Page 12
G.K.VIDHYAA
MANDIR
a
a
a
a
a
a
P
P
P
P
P
P
.
.
.
.
.
Send
Answer
Keys to our w
email
w. id - padasalai.net@gmail.com
ww
ww Your Questions &ww
ww
ww
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
rg
LESSON
– 21
.Org
.Org
.Org
i
i
i
a
a
a
lai.O
l
l
l
a
a
a
das
das
das
a
a
a
P
P
P
I. Choosewthe
. correct answer
w.
w.
ww
ww
ww
1.rgTobacco consumption is known
to stimulate secretion
rg
rgof adrenaline. The i.Org
O
O
O
.
.
.
i
i
i
component
causing
this
could
be
a
a
a
l
al
al
ala
s
s
s
a
a
a
a) Nicotine ab)
Tannic
acid
c)
Curcumin
d)
Leptin
d
d
ad
.PTobacco Day' is observed
.Pon
.Pa
w
w
w
2. World
'No
ww
ww
ww
a) May 31
b) June 6
c) April 22 d) October 2
g
g
r damaged by radiations
rg normal cells
3.r Cancer cells are more easily
.Othan
.Org
i
i
a
a
lai.Obecause they are salai.O
l
l
a
asa
asa
d
d
d
a
a
a
a) Different.P
b) Non-dividing
.P
w in structure
w.P
ww
c) Mutated
d)wUndergoing
rapid divisionTEXN
ww Cells
ww
4.gWhich type of cancer affects
nodes and spleen?
r Carcinoma b) Sarcoma
rgc)lymph
O
O
.
.
.Org
.Org
a)
Leukemia
d) Lymphoma
i
i
i
i
a
a
a
la
l
l
l
a
asa
asa
5. Excessive consumption
of alcohol leads
toas
d
d
d
a
a
a
.P
.P
.P
a) Losswofwmemory
b) Cirrhosis
ww of liver
ww
w
w
w
c) State of hallucination
d) Supression of brain function
g to
6.rgCoronary heart diseaseO
. isrdue
.Org
.Org
i
i
i
a
a
a
lai.Oa) Streptococci bacteria
l
l
l
a
a
a
aspericardium
dof
das
das
a
a
a
b) Inflammation
P
P
P
w. of heart valves
w.
w.
c)Weakening
ww
ww
ww
d) Insufficient blood supply to heart muscles
g
rg is called
rg
rg
O
O
O
O
7.r Cancer of the epithelial
cells
.
.
.
.
i
i
i
i
a
a
a
a
l
l
l
l
a) Leukemia dasa b) Sarcoma
c) Carcinoma
d) Lipoma
asa
asa
d
d
a
a
a
.P
.P
.P
8. Metastasis
ww is associated with www
ww
w
w
a) Malignant tumour
b) Benign tumour
c)rgBoth (a) and (b)
gd) Crown gall tumour.Org
.Orseen
.Org
i
i
i
a
a
a
in
lai.O9. Polyphagia is a condition
l
l
l
a
sa
asa
daDiabetes
das insipidus d) AIDS
d
a) Obesity Pab)
mellitus c)PDiabetes
a
a
.P
w.
w.
10. Where
after drinking?www
ww does alcohol effect immediately
ww
a) Eyes
b) Auditory region
c) Liver
d) Central nervous system
3. Obesity is characterized
.Org by tumour formation.
.Org
.Org
i
i
i
a
a
a
l
l
l
a
4. In leukemia
saboth WBCs and RBCsdaincrease
sa in number.
dacause
das
a
a
a
5. Study
of
of
disease
is
called
etiology.
P
P
P
.
.
w.
ww
ww
contact with a patient’swclothes.
w6.wAIDS is not transmittedwby
7. Type 2 diabetes mellitus
deficiency.
g results due to insulin
g
r
r
rg
O
O
O
.
.
.
8. Carcinogens are
cancer
causing
agents.
i
i
i
a
a
a
l
l
l
aissa
asa
asa
9. Nicotine
a narcotic drug.
d
d
d
a
a
a
.P
.P
.P
10.
wwCirrhosis is associated with
wwbrain disorder.
ww
w
w
w
w
ww
w
ww
w
ww
III. Expand the following
Org abbreviations
.
.Org
.Org
i
i
i
a
a
a
l
l
l
a
sa
asHIV
aCHD
asa
d
d
d
a
a
a
1. IDDM
2.
3.
BMI
4.
AIDS
5.
6.
NIDDM
w.P
w.P
w.P
w
ww
ww
ww
ww
IV. Match the following
.Org
.Org
.Org
i
i
i
a
a
a
l
l
l
1. Sarcoma
Stomach
asa
asa cancer
asa
d
d
d
a
a
a
2. Carcinoma
- .P Excessive thirst w.P
w.P
w
w
ww
ww
ww
ww
Padasalai
3. Polydipsia
4. Polyphagia
.Org
i
a
5. Myocardial
Infarction
l
sa
da
a
w.P
w Fill in the blanks
wV.
-
Excessive hunger
Lack of blood
rg flow to heart musclei.Org
O
.
i
- sala Connective tissue cancer
sala
da
a
w.P
w
w
ww
a
w.P
da
w
ww
1. Cirrhosis is caused in liver due to excessive use of __________________
rgchemicals derived fromi.O
rg is _________________
rg
2. A highly poisonous
tobacco
O
O
.
.
i
i
a
a
a
l
l
l
3. Blood cancer
asa is called ___________.
asa
asa
d
d
d
a
a
a
P is called
4. Less
dose with repeated
.Presponse of a drug to awspecific
.P
w.use
w
ww
w_______
ww
ww
ww
5. Insulin resistance isrg
a condition in _____________diabetes
mellitus
rg
rg
lai.O
lai.O
lai.O
a
a
a
s
s
s
a
a
VI. Analogy
Identify
adarelationship
Pad type questions. w
Pad the first words and
Ptheir
.
.
.
w
w
w
w suggest a suitable word
wand
ww for the fourth blank ww
ww
1. Communicable: AIDS
rg
Non communicable:
.Org
.Org
.Org
.Org___________ lai.Org
.Org
i
i
i
i
i
a
a
a
a
a
lai.OII. State whether True
l
l
l
l
l
2. Chemotherapy:
asa or False, if falseawrite
asathe correct statement
asa
asa Chemicals
asa
asa
d
d
d
d
d
d
a
a
a
a
a
Radiation
therapy: _____________
w.P
w.P
w.P
w.P
w.P
w.P
w
w
w
w
w
w
w
w
w
w
w
w
w
ww
3.
Hypertension:
Hypercholesterolomia
1. AIDS is an epidemic disease.
Glycosuria: _______________
2.rgCancer causing genes arercalled
Oncogenes.
g
rg
rg
O
O
O
O
.
.
.
.
.Org
.Org
.Org
i
i
i
i
i
i
i
a
a
a
a
a
a
la
l
l
l
l
l
l
a
a
a
a
a
sa
das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das Page 13
G.K.VIDHYAA
MANDIR
a
a
a
a
a
a
P
P
P
P
P
P
.
.
.
.
.
Send
Answer
Keys to our w
email
w. id - padasalai.net@gmail.com
ww
ww Your Questions &ww
ww
ww
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
rg
.Org
.Org
.Org
i
i
i
a
a
a
lai.OVII. Answer in a sentence
l
l
l
a
a
a
das
das
das
a
a
a
P
P
P
w.
w.
w.
1. Mention
ww the diseases caused by
wwtobacco smoke.
ww
2.gWhat is metastasis?
r How does insulin deficiency
rg occur?
rg
rg
O
O
O
O
.
.
.
.
3.
i
i
i
i
a
a
a
a
l
l
l
l
asa
asa
asa
d
d
d
a
a
a
VIII. Short
w.Panswer questions ww.P
w.P
ww
w
ww
1.rgWhat are the various routes
Org by which transmission
Oofrghuman immuno lai.Org
.
.
i
i
a
a
lai.Odeficiency virus takes
l
l
sa place ?
sa
asa
d
ada cell different from .aPnormal
ada cell ?
a
2. How is a.P
cancer
w
w.P
wwType-2 diabetes mellitus
3. Differentiate
between Type-1wand
ww
ww
5. What precautions can be taken for preventing heart diseases ?
rg
O
.Org
.Org
.Org
i
i
i
a
a
a
lai.
l
l
l
sa
IX. Long answer
aquestions
asa
asa
d
d
d
a
a
a
w.P
w.P
w.P
ww
ww
ww
rg
O
.
i
a
l
i.O
sala
a
ad
w.P
ww
lai.
lai.
lai.
a
a
a
s
s
s
a
da
ada the statements .which
II. State
Pad are false
.Pawhether True or False.
.PCorrect
w
w
w
ww
w1.wBiogas is a fossil fuel. ww
2. Planting trees increases the groundwater level.
g loss of wild life. .Org
3. Habitat destruction
.Orcause
i
a
l
alai
sa is a renewable energy.
s
4. Nuclearda
energy
a
d
.Pa
.Pa
5. Overgrazing
prevents soil erosion.
w
w
w6.wPoaching of wild animals
wwis a legal act.
7. National park is a protected
park.
rg
O
.
.Org
i
i
a
a
8. Wild life protection
act
was
established
in
1972.
l
l
sa
sa
ww
rg
O
.
i
a
l
a
w.P
i.O
sala
da
da
ww
rg
O
.
i
a
l
asa
a
w.P
g
.Or
i
a
l
sa
da
a
w.P
w
w
III.
Match
the
following
w
w
1. Soil erosion
-
energy saving
w
ww
ww
da
a
w.P
ww
da
a
w.P
w
ww
ww
a
w.P
w
.Org
i
a
l
sa
Padasalai
1. Changes in lifestyle is a risk factor for occurrence of cardiovascular
diseases.
Can it be modifiedrg
? If yes, suggest measuresrfor
g prevention.
rg
lai.O
LESSON – 22 i.Org
.Org
.Org
i
i
a
a
a
l
l
l
a
a
a
I. Fill in the
blanks
das leads to ______________
das in rainfall.
das
a
a
a
1. Deforestation
P
P
P
w.
w.
w.
w2.wRemoval of soil particles
wwfrom the land is called ______________.
ww
3. Chipko movement isginitiated against ______________
.
g
r
r
rg
O
O
O
.
.
.
4. ______________
is
a
biosphere
reserve
in
Tamilnadu.
i
i
i
a
a
a
l
l
al
asa is ___________ type
asenergy.
asa
5. Tidalaenergy
of
d
d
d
a
a
.P
.P fuels.
6. Coal,
w.P petroleum and natural
wwgas are called ______________
ww
w7.w______________ is thewmost
w
commonly used fuel for the production of
g
electricity.
Or
Org
Org
w
ww
w
ww
.Org
i
a
l
sa
da
w
ww
rg 2. Bio gas
r-g
rg
rg
acid rain
O
O
O
O
.
.
.
.
i
i
i
i
a
a
a
a
l
l
l
l
3. Naturaldgas
removal
asa
asa
asa
aofsavegetation
asa
d
d
d
d
d
a
a
a
a
a
a
4. Green
renewable
energy
.P
w.P
w.P
w.P
w.P house gas - ww
w.P
w
w
ww
ww
ww
w5.wCFL bulbs
w
w
ww
CO2
non-renewable energy
rg
rg
rg
rg 6. Wind
r-g
O
O
O
O
O
Org
.
.
.
.
.
.metals
.Org
i
i
i
i
i
i
i
7.
Solid
waste
lead
and
heavy
a
a
a
a
a
a
la
l
l
l
l
l
l
asa
asa
asa
asa
asa
asa
d
d
d
d
d
d
a
a
a
a
a
a
.P
w.P
w.P
w.P
w.P
w.P
w
wwChoose the correct answer
ww
ww
ww
wIV.
ww
ww
ww
1. Which of the following is / are a fossil fuel?
g
g
g
g
r
r
r
r
i. Tar
ii. Coal
iii. Petroleum i.Org
.O
.O
.O
.Org
.Org
i
i
i
i
i
a
a
a
a
a
a
lai.O
l
l
l
l
l
l
a) i only asa
b) i and ii
c)
asa
asa
asa
asiiaand iii d) i, ii andadiiiasa
d
d
d
d
d
a
a
a
a
a
2. What
.P for better waste management?
.P
w.P
w.P
w.P
w.P are the steps will you
wadopt
w
wwwaste
ww
ww
ww
wa)wreduce the amount of waste
ww formed
ww
b) reusewthe
d) allgof the above
rg
rg
rg
rg c) recycle the waste
rg
O
O
O
O
O
.
.
.
.
.
.Or
.Org
i
i
i
i
i
i
i
a
a
a
a
a
a
la
l
l
l
l
l
l
a
a
a
a
a
sa
das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das Page 14
G.K.VIDHYAA
MANDIR
a
a
a
a
a
a
P
P
P
P
P
P
.
.
.
.
.
Send
Answer
Keys to our w
email
w. id - padasalai.net@gmail.com
ww
ww Your Questions &ww
ww
ww
ww
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
3.rgThe gas released from vehicles
Org exhaust are lai.Org
.Org
i
a
lai.Oi. carbon monoxidesalaii.i.Sulphur
l
aOxides of nitrogen
a
dioxide aiii.
a
d siii d) i, ii and iiiPadas
a
a) i and ii .Pad
b) i and iii
c)
ii
and
P
.
w
w.
ww
4. Soil
erosion can be preventedwby
ww
ww
a)gdeforestation
b) afforestion
d) removal
of vegetation
g c) over growing .O
g
r
r
r
rg
O
O
O
.
.
.
5.
A
renewable
source
of
energy
is
i
i
i
i
a
a
a
a
l
l
l
al
ac)sanuclear fuel
asa
a) petroleum adas b) coal
d)dtrees
d
a
a
6. Soil w
erosion
w.P is more where therewisw.P
w.P
w
w
ww
a) no rain fall
b) low rainfall
c) rain fall is high d) none of these
g
g
7.
An
inexhaustible
resources
is
r
Or
Org
Org
.
.
i
i
a
a
lai.Oa) wind power salab)i.soil
l
l
fertility
c)
sawild life d) all of the
sa
aabove
d
ada source in village is.Pada
a
8. Common.P
energy
.P
w
wwanimal dung
a) electricity
b) coal wwwc) biogas
d) wood
ww
wand
9. Green house effect refers to
rg
rg
O
b) trapping
.Orgof UV rays
.Org
i
i
a
a
lai. a) cooling of earth salai.O
l
l
sawarming of earth dasa
c) cultivation ofdplants
a
ad)
d
a
a
Paenergy is
10. A cheap,
w.Pconventional, commercial
w.Pand inexhaustible source
w.of
w
w
w
w
w
w thermal energy
a) hydropower
b) solar energy
c) wind energy. d)
11.
rg Global warming willi.cause
O
Org
.
.Orgof glaciers
.Org
i
i
i
a
a
a
b)
melting
la a) raise in level of soceans
l
l
l
a
a
sa
da
dad)
das
c) sinking ofPislands
all of these
a
a
a
P
P
w.
w.
w.
12. Which
ww of the following statement
ww is wrong with respectwtowwind energy
a) wind energy is a renewable energy
rgthe blades of wind mill
rgoperated with the helpi.O
rg
b)
are
ofrg
electric motor
O
O
O
.
.
.
i
i
i
a
a
a
a
l c) production of wind
l
l
l
asa energy is pollutionafree
asa
asa
d
d
d
a
a
P energy can reduce w
d) usage w
of.wind
the
.Pconsumption of fossil fuels
w.P
w
w
w
w
w
w
V. Answer in a sentence
1.rgWhat would happen if therghabitat of wild animals is rdisturbed?
O
.
.O
.O g
.Org
i
i
i
i
of
soil
erosion?
a
a
a
la 2. What are the agents
l
l
l
sa
asa
asa
d
d
d
3. Solar energy
isaa renewable energy. How?
a
a
a
w.P
w.P
w.P
VI. Short
ww answer questions ww
ww
1. What is the importance of rainwater harvesting?
2.rgWhat are the consequences
.Orgof deforestation? lai.Org
.Org
i
i
a
a
lai.OVII. Long answersquestions
l
l
a a
asa
asa
d
d
d
a
a
a
1. How does
w.Prainwater harvestingwstructures
w.P recharge groundwwater?
w.P
ww
w
2. Enumerate
the importance ofw
forest.
3.gWhat are the consequencesgof soil erosion?
g
g
w
ww
g
4. Why is the management
considered as a.Org
.Org of forest and wildlife
.Orresource
i
i
a
a
l
l
lai
challengingatask?
sa
asa
asa
ad
ad
.P
ww
ad
.P
ww
wLESSON – 23
.P
ww
w
rg
I. Choose the best
answer
lai.O
sa
da
.Pa
w
ww
w
rg
lai.O
a
s
ada
1. Which
software is used towcreate
w
w.P animation ?
w
wa)wPaint
b) PDF
c) MS Word
g
2. All files are stored
in
the
______________
Or
Org
.
.
i
i
a
a
l
l
a) Folder sab) box
c) Pai sa
aused to build scripts?
d
da
a
3. Which
is
.P
.Pa
w
w
c) stage
wa)wScript area b) Block palette
ww
4. Which is used to edit programs?
a) Inkscape b)ascript
c) stage
.Orgeditor
.Org
i
i
a
l
l
5. Where dyou
blocks?
asawill create category of
asa
d
a
a
a) Block
w.P palette b) Block menu
w.P c) Script area
da
a
w.P
rg
O
.
i
a
sal
ww
rg
i.O
sala
d) scanner
ada
w.P
d)w
sprite
w
ww
II. Match the Following
rg
lai.O
a
s
da
1. Script
.PaArea
w
w2.wFolder
3. Scratch
4. Costume editori.Org
ala
s
5. Notepad
a
d
da
a
d) sprite
w.P
w
w
rg
lai.O
a
s
da
Type
.Panotes
w
ww Animation software
Edit programs
rg
Store files
O
.
i
a
l
Build d
Scripts
asa
ww
ww
a
w.P
w
.Org
i
a
l
sa
d) sprite
Padasalai
ww
w
w
w
d) Scratch
w
ww
.Org
i
a
l
sa
da
rg
O
.
i
a
sal
w
ww
a
ada
P
P
.
.
w
w
w Answer the followingwww
wIII.
ww
ww
.Org
.Org
.Org
i
i
i
1. What is Scratch?
a
a
a
l
l
l
sa
asa note on editor and aitsdatypes?
asa
d
2. Writeaadshort
a
w.P
w.P
w.P
w
ww
ww
ww
ww
.Org
.Org
.Org
i
i
i
a
a
a
l
l
l
asa
asa
asa
d
d
d
a
a
a
w.P
w.P
w.P
w
ww
ww
ww
ww
r
.Or
.Or
.Or
.Org
.Org
.Org
i
i
i
i
i
i
a
a
a
a
a
a
lai.O
l
l
l
l
l
l
a
a
a
a
a
sa
das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das Page 15
G.K.VIDHYAA
MANDIR
a
a
a
a
a
a
P
P
P
P
P
P
.
.
.
.
.
Send
Answer
Keys to our w
email
w. id - padasalai.net@gmail.com
ww
ww Your Questions &ww
ww
ww
ww
a
w.P
das
s
s
s
s
das
www.TrbTnpsc.com
ada www.Padasalai.Net
ada
a
ada
ada
P
P
P
P
P
.
.
.
.
.
w
w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
BIOLOGY(9043957609)
wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
ww
ww
a
w.P
r
lai.O
g
.Org
i
a
l
sa
da
a
w.P
ww
ww
rg
a
w.P
ada
P
.
w
ada
w
g
r
lai.O
.Org
i
a
l
sa
a
w.P
.P
ww
w
da
ww
a
ww
ww
.P
ww
w
.Org
i
a
l
sa
lai.O
a
s
ada
da
ada
rg
w
ww
rg
.P
ww
rg
O
.
i
a
sal
ww
rg
i.O
sala
i.O
sala
ada
.P
ww
w
i.O
a
l
a
s
w
ww
a
w.P
w.P
lai.O
a
s
ada
ada
da
a
w.P
ww
rg
i.O
sala
.Org
i
a
l
sa
rg
i.Or
a
l
a
s
ad
w.P
.Org
i
a
l
asa
d
a
w.P
g
i.O
sala
w
.Org
i
a
l
sa
a
w.P
rg
i.O
sala
.P
ww
da
ww
rg
ada
.Or
i
a
l
sa
rg
ww
rg
i.O
sala
.P
ww
ww
w
g
.Or
i
a
l
sa
ada
ww
rg
da
a
w.P
w
w
rg
ww
rg
O
.
i
a
l
ww
a
w.P
rg
da
ww
rg
da
w.P
rg
lai.O
a
s
a
Pad
ada
.P
ww
.
ww
w
rg
lai.O
ww
ww
rg
lai.O
w
g
ada
.P
ww
rg
i.O
sala
a
w.P
w.P
ww
.Org
i
a
l
sa
rg
ada
i.O
sala
ww
ada
P
.
w
.Org
i
a
l
a
das
a
w.P
da
.Pa
w
ww
da
w
ww
rg
O
.
i
a
sal
ada
P
.
w
ww
rg
w
ww
rg
i.O
sala
i.O
sala
ada
w.P
ww
ww
.Org
i
a
l
sa
rg
i.O
sala
da
.Pa
w
w
w
rg
i.O
a
l
a
s
ww
i.O
sala
a
w.P
w
w
w
ww
rg
rg
da
ww
a
G.K.VIDHYAA
ada MAT.HR.SEC.SCHOOL,
PMANDIR
Pad KARUR.
w.
ww
da
a
w.P
lai.O
a
s
da
rg
da
i.Or
a
l
a
s
rg
ada
P
.
w
i.O
sala
a
w.P
w
ww
.Org
i
a
l
sa
ww
ada
P
.
w
i.O
a
l
a
s
da
a
w.P
rg
ww
w
i.O
a
l
a
s
lai.O
a
s
da
i.O
sala
.Org
i
a
l
sa
rg
a
w.P
a
w.P
w.P
ww
rg
.Or
i
a
l
sa
da
lai.O
a
s
ada
ww
ada
P
.
w
ww
g
i.O
sala
rg
i.O
sala
a
w.P
da
rg
i.O
sala
a
ad
w.P
a
w.P
w
w
rg
i.O
a
l
a
s
da
a
w.P
w
w
a
ad
w.P
ww
i.O
sala
ada
a
ada
P
P
P
.
.
.
.
Send
Answer Keys to our w
email
w id - padasalai.net@gmail.com
ww Your Questions &ww
ww
w
.Org
i
a
l
sa
Padasalai
da
a
w.P
lai.O
ww
ww
rg
g
a
ad
w.P
i.O
sala
a
ww
.Org
i
a
l
sa
rg
i.Or
a
l
a
s
ad
w.P
lai.O
da
g
lai.O
lai.O
rg
i.O
sala
w
ww
rg
w
w
ww
.Org
i
a
l
sa
w
ww
.Org
i
a
l
a
das Page 16
a
P
w.
ww