INDIAN SCHOOL MUSCAT
WORK SHEET –BIOLOGY
Chapter 6
Life Processes (Nutrition)
CLASS: X
Date: 03.04.2014
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What is the role of saliva in the digestion of food?
What is life process? Give some examples of life processes.
What are the necessary condition for autotrophic nutrition and what are its by
product?
Name the type of nutrition
a) Fungi like bread mould , yeast , mushroom breakdown the food
materials outside the body and absorb it.
b) Cuscuta , lices and ticks derive nutrition from plants or animals
without killing them.
Which is the largest gland in our body ? Which gland is both exocrine and endocrine?
Why energy is required by an organism even during sleeping?
Which is the first enzyme to mix with food in the digestive system?
When a leaf is tested for starch, what reagent removes chlorophyll?
Name the stored form of carbohydrate in animals and plants.
In the experiment “Light is essential for photosynthesis” why do the uncovered part of
the leaves turn blue black after putting iodine solution?
a)
Small intestine is the site of complete digestion of carbohydrate, protein and
fat. Name the end products of their digestion.
b)
The leaves of a plant first prepare food A by photosynthesisand then the food A
is converted into food B. Name A & B.
Write the aim of the experiment when potted plants kept with potassium hydroxide and
without potassium hydroxide under a bell jar to assess the rate of photosynthesis.
Give a balanced chemical equation for photosynthesis.
Leaves of a healthy potted plant were coated with Vaseline to block the stomata. Will
this plant remain healthy for long? State three reason for your answer.
a)
What are the major events occurring during the process of photosynthesis?
b)
Name the energy transformation taking place in the process of photosynthesis.
Photosynthetic steps need not take place one after another immediately. Clarify the
statement suggesting an example.
OR
How is food produced by desert plants, as the stomata remain closed during the day?
Draw a diagram showing the cross section of a leaf and label the parts.
Give examples for heterotrophs which break down food material
a) outside the body b) inside the body
Chewing a piece of bread in the mouth for a period of time makes it sweeter. Give
reason.
Write the name / terms associated with the following
a) the natural phenomenon involved in autotrophic nutrition
b) the organelle of the leaf in which photosynthesis takes place
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c) the photosynthetic pigment which absorb light energy
d) the structures associated with vascular bundle
Which digestive secretion does not contain any enzyme but is very important in the
process of digestion. Comment on it.
Why is small intestine in herbivores longer than in carnivores?
Explain the mode of feeding in amoeba. Draw diagrams to illustrate
Match the following pair of statements (associated with an experiment in
photosynthesis) and place them in the correct order in which they occur
Stages in starch test
Reason
Wash leaf in water
Kills leaf
Boil leaf in water
Soften leaf
Cover with iodine solution
Removes chlorophyll
Boil leaf in ethanol
Inflammable (prevent fire)
Use of water bath
Stain starch
What are stomata? Why is there a need for opening of stomata in leaves during the
day? Mention how guard cells help to perform these functions.
What is peristalsis? . Explain both mechanical as well as the chemical part of
digestion of food in the mouth of man.
Villi are richly supplied with blood vessels and take the absorbed food to each every
cells of the body where it is utilized. Mention the name of the major absorbed nutrients
and their utilization.
Shiju collected his saliva and mixed it with liquid A in the test tube. In another test
tube he took only liquid A. After 10 minutes, he added a few drops of iodine solution in
the mixture in the first test tube. It did not show any colour but when he treated the
other test tube with iodine, a blue black colour appeared. Now answer –
a) What is the aim of this activity?
b) What is liquid A?
c) Why did the first test tube not shown any colour change with
iodine while the second one did?
d) Which enzyme is responsible for such a result?
a)
Enumerate the event that actually happens during the process of
photosynthesis?
b)
Name any two parasitic plant and two parasitic animals
I) Pancreas produces a juice which contains three important enzymes.
Name the enzyme which act upon
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i) Starch
ii) Protein
iii) Fat
II) Small intestine is the site for complete digestion of carbohydrate, protein and fat
. Write down the changes happens to the food in the small intestine before its
absorption
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a)
Explain the process of digestion of food in the stomach.
b) How passage of food from the stomach is regulated onwards?
c)
Explain the process of fat digestion in the gut of man.
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a)
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What is emulsification?
b)
c)
Briefly mention the role of hydrochloric acid in the stomach.
Which protein digesting enzyme is present in the pancreatic juice?
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Study the diagram below and answer the following questions
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a) The plant was kept in the dark room for 24 hrs before being placed
in sunlight. Why?
b) What is the function of the potassium hydroxide solution?
c) The apparatus was set up as in the diagram and left for about
12 hrs. Starch test were carried out on
i) Leaf A
ii) Leaf B
iii) Leaf C
Comment on the conclusion drawn from the procedure conducted on leaf A ,B and C
Below is a diagram of the human digestive system .Label all the parts.
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Also write the letter and name the part of the digestive system
applicable to
I) where is Bile
a) Made?
b) Temporarily stored
c) Mixed with food
d) What does bile do?
II) Where is Acid
a) Made?
b) Name the acid
c) How the part is protected?
III) Where Trypsin(enzyme)
a) Made?
b)Name the substrate
c) Write the end product
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Match the term in column A with those in column B
Tripsin
Amylase
Bile
Pepsin
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Pancrease
Liver
Gastric glands
Saliva
BOARD QUESTIONS
State the basic difference between the process of respiration and photosynthesis
(2010)
In the experiment “Light is essential for photosynthesis” why does the uncovered
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part of the leaf turn blue black after putting iodine solution?(2010)
Mention how organisms like bread mould and mushrooms obtain their food (2010)
Name the enzyme present in the saliva. Mention its role in food digestion .(2009)
Draw a labeled diagram of alimentary canal of man. What are the functions of
digestive system (2008)
a)
Draw a diagram of the human alimentary canal
b)
Label Liver , Gall Bladder , Pancreas and Colon on the diagram drawn
c)
State the function of trypsin (present in pancreatic juice) during digestion
process (2007)
a)
State two difference between autotrophic nutrition and heterotrophic
nutrition
b)
Give example for each of this nutrition’s. (2008)
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INDIAN SCHOOL MUSCAT
WORK SHEET – BIOLOGY
Chapter 6
Life Processes (Respiration)
CLASS: X
Date: 28.04.2012
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Gills ,lungs ,skin ,trachea are respiratory organs of different organisms .
Mention any two common features seen among them with reason .
Name the first breakdown product of glucose during respiration. Where
does it take place?
What is anaerobic respiration? What happens during anaerobic
respiration in yeast?
Name the three carbon compound formed during anaerobic respiration in
muscle.
What is the specific reason for muscle cramps that are caused due sudden
physical activity?
Breathing through nose is better than breathing through mouth. Why?
Which pathway is common to both aerobic and anaerobic respiration?
In test tubes A and B, yeast was kept in sugar solution. In test tube A
added a thin film of oil and test tube B kept opened. Which product of
respiration would you expect in the test tubes A and B.
Distinguish between breathing and respiration
What is larynx?
During the respiration of an organism A one molecule of glucose produce
2 ATP molecule where as in the respiration of organism B ,one molecule
of glucose produce 38ATPmolecule .Which of the organism A or B has
anaerobic respiration ? Suggest any other major difference between
anaerobic and anaerobic respiration.
What is the significance of residual volume of air that lungs always
contain?
What is aerobic respiration? Name the aerobic respiration products.
Where does it take place?
Name the energy currency of the cell. Why is it called so?
What are the adaptations in plant leaves to satisfy the oxygen requirement
for aerobic respiration?
Explain the role of alveoli in the lungs with respect to its structure and
function.
Name the organs in plants which are meant for exchange of gases.
What is Adams Apple? What is covering of the lung known as?
What are the major gaseous exchange activities in plants during the day
and night?
Air is exhaled through lime water and air is passed through lime water
using pichkari. In which case lime water turns milky first? Give reason
What are the different pathways in which glucose is oxidized to provide
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energy in various organisms? Explain by writing the reactions involved
1. Name the source of oxygen for terrestrial animal and aquatic animals.
2. Why the rate of breathing in aquatic organisms are faster
than terrestrial animals.
Mention the role of hairs and mucus in the nasal passage of human
beings.
Why does the air passage does not collapse?
Briefly explain the breathing cycle ,specifically during air is taken in
From the two lists below ,match each structure with its correct function ,
associated with respiratory system in human being.
Structure
Function
1. The nasal cavity
1. Produce the sound
2. Epiglottis
2.Carries air down the lungs
3. Larynx
3. warm ,moisten and filter the air
4. Alveoli
4 Separate thorax from the abdomen
5.Diaphragm
5. Prevent entry of food to trachea
6. Trachea
6. Gas exchange takes place
Shortly explain how oxygen and carbon dioxide is transported to all parts
of our body. Mention the significance of hemoglobin.
Draw a neat well labeled diagram depicting human respiratory system.
Explain in brief the role of lungs in the exchange of gases.
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From the flow chart given above answer the following questions.
a) What is the source of glucose molecule involved in cellular
respiration in plants?
b) What is the source of glucose molecule involved in the
cellular respiration in animals?
c) Out of the three types of reactions given in the flow chart,
which reaction can be termed as anaerobic? (write the number
specified in the chart )
d) Out of the three types of reactions given in the flow chart,
which reaction can be termed as aerobic? (write the number specified
in the chart )
e) Name the three carbon compound formed during anaerobic
respiration in muscle.
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BOARD QUESTIONS
Name the intermediate and the end product of glucose break down in
aerobic respiration(2010)
State the basic difference between respiration and breathing(2010)
Name the end products of glucose breakdown in aerobic respiration
(2010)
Why is the rate of breathing in aquatic organisms much faster than that
seen in terrestrial organisms? How does oxygenation of blood takes
place in fish? (2010)
Define respiration .Name the types of respiration which occur in living
organisms. Define aerobic and anaerobic respiration. Write the
equation for both the processes (2008)
a)
Draw the respiratory system of human beings
b)
Label the following in the diagram drawn
Larynx , Trachea , Primary bronchus , Lungs
c ) What happens to the carbon dioxide which collect in the
human tissues ? (2008)
a)
Draw a diagram of the human respiratory system and label on it
Alveolar Sac , Bronchioles , Larynx and Trachea
b)
How are the lungs designed in human beings to maximize the
area of exchange of gases? (2008)
Draw a neat labeled diagram of human respiratory system .Explain in
brief the role of lungs in the exchange of gases (2010)
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INDIAN SCHOOL MUSCAT
WORK SHEET – BIOLOGY
Chapter 6
Life Processes (Transportation)
CLASS: X
Date: 22.05.2012
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Name the following
a)
A blood vessel that supplies oxygenated blood to the
chest muscles
b)
Artery which carries deoxygenated blood
What do you mean by translocation with respect to transport
in plants ?
Give the blood pressure value for a healthy adult? Name the
instrument used for measuring the blood pressure value.
What is blood pressure?
Name the artery which supplies blood to the heart muscles.
Which process in plants creates suction force to help water
column rise in plants?
Mention the role of valves in the heart.
Name the blood vessel that brings oxygenated blood to the
heart.
What is transpiration? Mention its significance.
Differentiate between blood and lymph in respect of
a)
Direction of flow
b)
Cellular composition
What is blood plasma? Name the components transported by
blood plasma
Why is it necessary to separate oxygenated and deoxygenated
blood in mammals and birds?
What are blood capillaries? What is its function?
Account on the unequal thickening of the walls of the heart
especially the wall of the left ventricle. Give reason
Why amphibians can tolerate certain amount of mixing of
oxygenated and deoxygenated blood?
Mention the functions of RBC and WBC.
Write an explanatory note on Haemodialysis.
Explain the course of circulation of blood through the heart in
human beings. Why is it known as double circulation?
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Differentiate between
a) Single circulation and double circulation
b) Systolic pressure and diastolic pressure
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What is lymph? Explain its important function. Write about its
course of circulation.
Mention the situation which necessitates a proper transport
system in plants.
Explain the mechanism of transportation of water and
minerals in pants.
How is food transported in plants?
a)
Draw a diagram to show the internal structure of the
human heart. Label six parts in all including two valves at
least.
b)
Name the component of blood that helps in the
formation of blood clot in the event of a cut.
Draw a schematic representation of transport and exchange of
oxygen and carbon dioxide in man.
Write the functions of a) Haemoglobin b) Blood platelets
Write the function each of the following components of the
transport system in human beings?
a)
Blood
b) Heart
List below are some properties of types of blood vessel.
Separate them into three groups as
1. Arteries
2. Veins
3. Capillaries
a) Carry blood to the heart
b) Carry blood from the heart
c) Have thick elastic walls
d) Blood flows through them in pulses
e) Oxygen and food pass through the walls
f) Have valves to prevent back-flow
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BOARD QUESTIONS
Name the component of blood that helps in the formation of blood clot
(2010)
Why is the rate of breathing in aquatic organisms much faster than
that seen in terrestrial organisms? How does oxygenation of blood take
place in fishes ?(2010)
What is meant by translocation with respect to transport in
plants? (2007)
a)
State two structural difference between an artery and vein
b)
Name the non nucleated cells present in human blood and state
one function of the cells
c)
Draw a labeled diagram of the heart (2005)
a)
Why is circulation of blood in man known as double
circulation?
b)
Which blood cell in human blood carries haemoglobin? What is
its average life span?
c)
Draw a labeled diagram of human heart (2006)
a)
Draw a schematic representation of transport and exchange of
oxygen and carbon dioxide during transportation of blood in human
being and label on it :
Lung capillaries , Pulmonary artery to lungs , Aorta to body
Pulmonary vein from the lungs
b)
What is the advantage of separate channels in mammals and
birds for oxygenated and deoxygenated blood ?(2009)
Mention the substances which are transported through the phloem to
various parts of the plant.
Also mention the organs in which these substances are synthesized
(2008)
Write one function each of the following components of the transport
system in human being (2009)
a)
Blood vessels
b) blood platelets
a)
Lymph
d) Heart
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INDIAN SCHOOL MUSCAT
WORK SHEET - BIOLOGY
UNIT – EXCRETION
CLASS - X
DATE - 04 .08. 2012
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Name the blood vessel that brings nitrogenous wastes to the kidneys
for removal
Which part of the nephron is connected to the ureters
Name the bunch of capillaries formed from the branch of the renal
artery situated in the Bowman’s capsule
How does amoeba get rid of their waste material
Mention the location of the kidney in our body.
Mention two factors on which the amount of water reabsorbed by the
kidney depends
Name two dissolved substances which are partially or completely
reabsorbed from the kidney tubule back into the blood
Mention the role of
a)
Nephron
b)
Ureters
How is the amount of urine produced regulated?
Name the following
1.
Organ where ammonia converted in to urea
2.
Structure of the excretory system where urine is temporarily
stored
Complete the following table using the word bank given in the box
below
Word bank: 1. deoxygenated 2. oxygenated
3.
With nitrogenous waste 4.Without nitrogenous waste
Name of the blood
vessel
Type of blood
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Renal Vein
Renal Artery
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What are the methods used by plants to get rid of their excretory
products
1. Draw a diagram of urinary system of human beings in your
note book and label
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a) kidney
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b) ureters c) Urinary bladder
d) Urethra
State the vital function of the kidney. Name the procedure used in the
working of artificial kidney. Briefly explain
BOARD QUESTIONS
Draw a neat labeled diagram f human excretory system. Describe in
brief the function of kidneys ,ureters ,urinary bladder and urethra
(2010)
Name the organ in the human body where nitrogenous wastes are
filtered out from the blood .(2010)
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INDIAN SCHOOL MUSCAT
WORK SHEET - BIOLOGY
UNIT - CONTROL AND COORDINATION - I
CLASS - X
DATE - 27 .08. 2012
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Name or give one term for the following
a) Branched protoplasmic extension of the cell body
b) Part of the brain that coordinate muscular activity
Name the receptors for taste and smell.
What are the components of the central nervous system ?
Which part of the brain maintains posture and equilibrium
of the body?
What are neurons or nerve cells? Write its specialized
function.
What are a) Cranial nerves b) Spinal nerves
Name the three major regions of the brain
What are synapses? What happens at the synapse between
two neurons?
How does muscle fibers bring about movement by
shortening the muscle fiber
How are brain and spinal cord protected in our body ?
What are the short fibers of a neuron known as? Mention
their function.
What are the long fibers of a neuron known as? Mention
their function.
Draw a neat labeled diagram for a typical neuron.
What are the components of fore brain in human brain ?
Write the functions of fore brain.
Hind brain consists of three parts .What are they? Mention
the functions of hind brain
Draw a neat diagram for human brain and label any six
parts.
Draw a neat labelled diagram for reflex arc and explain
their pathway.
Define reflex action? Give few examples for reflex action
from our daily life.
Give the generalized scheme for how nerve impulse travels
along the neuron so as to reach the muscle or a gland.
What is a neuromuscular junction? Draw a diagram of
neuromuscular junction where impulse is converted into
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chemical signal for onward transmission.
BOARD QUESTIONS
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What is the difference between sensory neuron and motor
neuron?
Which part of the human brain is responsible for auditory
reception and sensation of smell? (2008)
What is reflex action? Describe the steps involved in a reflex
action? (2009)
a)
Name the two main constituents of the Central Nervous
system in human beings.
b)
What is the need for a system of control and coordination
in human beings (2009)
a)
Distinguish between voluntary and involuntary actions in
our bodies
b)
Choose involuntary actions from amongst the following
Reading , beating of heart , salivation in the mouth on
viewing a tasty food , talking (2008)
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INDIAN SCHOOL MUSCAT
WORK SHEET - BIOLOGY
UNIT - CONTROL AND COORDINATION - II
CLASS - X
DATE - 27 .08. 2012
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Name the type of movement in touch me not plant.
Name a plant hormone associated with the following
a) Bring about elongation in dwarf plants
b) Inhibit growth
Name the two type of movement in plants
What is a tropic movement?
Give the fundamental difference between movement of a
sensitive plant and growth related movement.
What are plant hormones? Give the generalized functions
of plant hormones
Shoot of a plant bend towards light. How does the bending
of a root take place?
How do auxins promote the growth of a tendril around the
support?
Give examples of plant hormone one promote growth and
one inhibit the growth.
Adrenaline is often called flight and fight hormone. Why?
Name the target organs of adrenalin and mentions its effect
to help us face the emergency
Why iodized salts are advisable for cooking?
Name the source and one main function of ;
a) oestrogen
testosterone
Give one similarity and two differences between the
stimulus response in plants and animals
Define the following terms suggesting examples.
1. Phototropism 2. Geotropism 3. Chemotropism
What are the limitations of electrical impulse as a means
for stimulus response?
Why diabetes patients are treated with insulin injections.
Explain how the secretions of various hormones are
maintained balanced. Explain with an example.
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BOARD QUESTIONS
Which hormone is responsible for the development of mustache and
beard in men?(2007)
a)
How do plant cells change their shape in the absence of
muscle fibre or muscle proteins as present in animals ?
b)
Name one plant hormone that induces growth and one that
inhibit growth. Mention one more function of each one of them.
(2010)
Name any two types of tropism .(2010)
Design an experiment to demonstrate that the roots bend in the
direction of water stimulus (2010)
Which endocrine gland secretes the growth hormone? (2009)
Which one of the following action on touch is an example of
chemical control?
Movement on the touch –sensitive plant
Movement in human leg (2009)
In our bodies what is the function of thyroxine hormone ? (2009)
Name the endocrine gland that secretes insulin in our bodies.(2009)
What is the function of the hormone secreted by the endocrine
gland pituitary? ( 2008)
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INDIAN SCHOOL MUSCAT
WORK SHEET –BIOLOGY
Chapter 9
HERIDITY AND EVOLUTION
CLASS: X
Date: 25.11.2012
1 Define the terms
1. Heredity
2. Variation
2 How does creation of variation vary in asexual and sexual
reproduction?
3 What is the meaning of trait in genetic terms?
4 How does the creation of variation in a species promote survival?
5 Give three contrasting characters Mendel studied in garden peas.
6 What is natural selection in Darwin terms?
7 Why Mendel is called father of genetics?
8 What are 1. Acquired trait
2. Inherited trait
9 What is meant by evolution? Mention few tools which help in
tracing evolutionary relationship in human being.
10 Why are traits acquired during the life time of an individual not
inherited?
11 Suggest an example to show that individual cannot pass on to its
progeny the experiences of its life time
12 Define the terms 1. Microevolution
2. Speciation
13 What factors could lead to the rise of a new species?
14 State the major postulates of the theory of natural selection
15 Illustrate the connection between classifications of species with
evolutionary relationship.
16 What are fossils? What do they tell us about the process
of evolution?
17 How will you estimate the age of the fossils?
18 State one characteristics which shows that the birds are very closely
related to dinosaurs
19 What are homologous organs? How do they provide evidence in
support of evolution?
20 What are analogous organs? Give examples
21 What is sex chromosome? Name the two types of sex chromosomes.
Mention the sex chromosomes present in male and female.
22 Explain Mendel’s experiment with pea on inheritance of traits
considering only one visible characteristics
23 How does Mendel experiments showed that traits are inherited
independently? Explain with example.
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How do genes control the characteristics or traits in an organism?
The genotype of a pea plant producing violet flower is denoted by
VV and that of a pea plant producing white flower is denoted by vv.
When these two are crossed
1)
What colour of the flower would you expect in the F 1
progeny?
2)
Give the percentage of violet flower plant if F I plants are
self pollinated
3)
In what ratio would you find the genotype of VV and Vv in
the F2 progeny?
How is the sex of the child determined in human being?
Suggest an example from plant kingdom to shows that dissimilar
structures evolved from a common ancestor.
BOARD QUESTIONS
In terms of evolution what is the significance of homology between a
human hand and wing of a bird? ( 2009)
What are fossils? Describe the importance of fossils in deciding
evolutionary relationships between organisms.(2009)
What is the effect of DNA copying which is not perfectly accurate on the
reproduction process?(2008)
How is the sex of the offspring determined in the zygote? Explain (2007)
Describe briefly different ways in which individuals with a particular trait
may increase in a population.(2008)
Mendel selected two kinds of pea plants for his experiment, namely those
that always gave tall plants and those that always gave short plants. He
then obtained progeny F1 from tall and short plants. He selfed the F1
progeny and obtained F2 progeny. Write and explain the results F1 and F2
progeny obtained by Mendel. (2010)
With the help of suitable example explain natural selection .(2010)
a) All organisms reproducing sexually and asexually show variation.
Mention in which one of the two they occur faster. Give reason
in support to your answer.
b) Explain with an example that acquired characters are not inherited.
State a reason why it is not possible. (2010)
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