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G.K.VIDHYAA
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asa
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cranial
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g
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g
g
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ala
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ww
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d
d
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a
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w.P
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w
w
w
w
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1. An anticoagulant present in saliva of leech is called heparin.
3. How is diastema formed in rabbit?
4. How does leech suck
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lai.O
a
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rg
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g
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LESSON
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.Org
.Org
.Org Section
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.Org
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i
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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
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.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
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w.P + RBC + WBC wwd).PBlood - Plasma + RBC+
w
II. Fill
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ww
w
ww
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rgWater enters the root celli.O
rg a __________ plasma
rg
through
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.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
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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
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- ww Pressure in xylem
ww
ww
4. Root Pressure
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g
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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
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deoxygenated
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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
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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?
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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
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w.P
w.P
w
ww cellare
w
w
weach
w
w
ww
and mention its functions.
rg
.Org
.Org
.Org
.Org
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G.K.VIDHYAA
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a
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.
. Your Questions & w
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Answer
Keys
to
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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
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a
a
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P
P
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w.
w.
ww
ww
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1.gBipolar neurons are foundgin
r retina of eye
r
rg
rg
O
O
O
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.
.
.
.
(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
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.P
.P
ww
wwhypothalamus
ww oblongata
wcerebrum
w(d)
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(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
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d is the longest cell inPa
d
d
1. __________
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. our body.
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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
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__________
.
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
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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
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w.
w.
w.
w
w8.wReflex arc allows the rapid
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rg
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IV. Matchathe
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asa
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ww
ww
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wwB. Hypothalamus
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ww
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w CODER, PG ASST.IN
w
w
ww PGDCA., MEDICAL
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wwV.ANTONY AROCKIA
ww SELVAN M.Sc.,wM.Ed.,
ww
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rgUnderstand the assertion
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ww
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asacallosum is present aindspace
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ww intracranial pressure.
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i
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l
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a a
asa
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d
d
d
a
a
a
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w
ww
ww
w
w
w
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.
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.Org
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i
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a
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l
l
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a
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a
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a
a
a
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w.
w.
ww
ww
ww
a
d
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ww
w
ww
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d
a
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a
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ww
rg
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.
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a
l
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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
.
.
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b)
Elongation
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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
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w
ww
wa)wCytokinin b) Auxin ww c) Gibberellin
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rg
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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
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.Org
.Org d) Ethylene
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i
i
i
a
a
l
l
l
6. LH is secreted
asa by
asa
asa
d
d
d
a
a
a
.P
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w7.wIdentify the exocrine gland
ww
ww
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la
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a
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w
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a
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w
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w
w
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asa pregnancy and birth
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g
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a
a
l
l
a
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das
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a
a
a
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i
i
i
a
a
a
l
l
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d
d
a
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asa How milk production
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d
d
a
a
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a
a
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a
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a
l
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ww
ww
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g
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B
a
a
a
a
a
a
a
l
l
l
l
l
l
l
asa
asa
asa
asa
asa
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caudal
vertebrae
and vermiformad
appendix
d
d
d
d
d
a
a
a
a
a
.P
.P
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1. Biogenetic
b)
a forelimb
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w
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ww
ww
wVestigial
ww
w
w
w
w
ww
w
w
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a
a
a
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l
l
l
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a
asa
asand
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a
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w.P
w.P
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ww
ww
ww
ww
ww
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g
g
g
g
r
r
r
r
O
O
O
O
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.
.
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i
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a
a
a
a
a
a
lai. c. Jean Baptiste Lamarck
l
l
l
l
l
l
sa with
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d
d
d
d
d
a
a
a
a
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i
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g
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a
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l
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d
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d
d
d
a
a
a
a
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ww
ww
ww
ww
ww
w
w
w
w
w
w
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asaimportance of biotechnology
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G.K.VIDHYAA
MANDIR
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das MAT.HR.SEC.SCHOOL,
daKARUR.
das
das
das
das Page 13
G.K.VIDHYAA
MANDIR
a
a
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a
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