BIOLOGY IMPORTANT QUESTIONS FOR SSC
Blood and its Components
1 Mark Questions
1. What is haemotology?
2. What is serum?
3. What is a saline?
4. How plasma is different from serum?
5. What is heparin?
2 Mark Questions
1. What is erythropoieses?
2. Why spleen is called as grave yard of R.B.C.?
3. What are the types present in leucocytes?
4 Mark Questions
1. What are the differences between R.B.C and W.B.C.?
Factors Controlling Respiration
1 Mark Questions
1. What are the factors Controlling respiration?
2. What is optimum temperature?
3. Where do we see respiration in absence of oxygen?
4 Marks Questions
1. How can you show that heat is liberated during
respiration?
1 Mark Questions
1. What is corelome?
2. What is Aestivation and hibernation?
3. What is Exoskeleton?
4. What is alveoli?
5. What is inspiration?
6. What is meant by diffusion?
7. What is Palate?
8. How trachea is prevented from collapsing?
9. What is pleura?
10. What is Eouglothis?
2 Marks Questions
1. Describe the respiratory system in Fishes?
2. Write briefly about pharynx?
4 Marks Questions
1. Describe the tracheal system of cockroach?
2. Describe Human lungs?
3. Explain the mechanism of human Respiration?
4. Whar are the differences between external and internal
Respiration? (V.V.Imp)
BLOOD GROUPS & IMPORTANCE OF BLOOD DONATION
1 Mark Questions
1. What is blood transfusion?
2. What are the types of antigens in human
blood?
3. Who are Universal donors?
4. What are the types of blood group
antibodies in human blood?
5. How is blood stored? (Imp)
2 Mark Questions
1. What is agglutination of blood?
2. What is the necessity of blood transfusion?
3. How is blood transfusion done and who can
donate the blood?
4. Why 'O' group people are called Universal donors? Whom
do you call universal recipients and
why?
5. Write short notes on Rh factor?
4 Mark Questions
1. Describe the different blood groups in man?
5 Marks--( Diagrams)
1. Human Lungs
Life Process
(Concepts of Photosynthesis)
1 Mark Questions
1. What is life Process?
2. Which wave length of light is more suitable
for photosynthesis why?
3. Write an equation for photosynthesis showing all the
requirements and the products formed?
4. What is veriegated leaf?
5. What are the factors of photosynthesis?
6. What are the end products of light
reaction?
7. What is electron acceptor? Give some
examples?
8. What is the test that is made to prove
photosynthesis?
2 Marks Questions
1. Define photosynthesis and write the
equation of photosynthesis?
2. What is a reaction Centre?
3. What is a pigment?
4. What is photolysis of water?
4 Marks Questions
1. Describe the structure of chloroplast?
2. Explain How CO2 converted to glucose during photosynthesis (or) Explain dark reaction
(or)
carbon fixation.
5 Marks--( Diagrams)
1. Structure of Chloroplast
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1 Mark Questions
1. What is the other name of bicuspid Valve?
2. Why there is more pressure in arteries than
in veins?
3. What is heart beat?
4. What is mitral valve? What is its function?
5. Deoxygenated blood from heart goes to lungs and
oxygenated blood from lungs returns to heart?
Name
the circuit?
6. Deoxygenated blood from body goes to the
heart and oxygenated blood from heart returns to the
body.
Name the circuit.
2 Marks Questions
1. Mention the three stages of Heart beat?
2. A Person B.P. is written as 120/80. What
does this indicates?
3. Write a short notes on heart Attack?
4. Write a short note on sphygmomanometer?
5. What is pulmonary circuit?
4 Marks Questions
1. What is hypertension? How it is caused? Mention the
preventive steps to be taken?
2. What are differences between right auricle
and left auricle?
3. What are differences between left ventricle
and right ventricle?
5 Marks--( Diagrams)
1. Draw the diagram of internal structure of human heart and
labelled the parts?
2. Draw the diagram of human heart showing position of
different valves and the direction of flow
of
blood and labelled the parts?
1 Mark Questions
1. What is Cellular Respiration?
2. How citric acid is formed?
3. What is oxidative phosphorylation?
4. What is Fermentation?
5. What is Glycolysis?
6. What is electron transport?
7. What is krebs cycle?
2 Marks Questions
1. What are the difference between Anaerobic
respiration and Aerobic respiration?
2. Write the differences between combustuion and
Respiration?
3. What are the differences between photophosphorylation and
oxidative phosphorylation?
4. What are the Respiratory substrates? Give
two examples?
4 Marks Questions
1. Describe the structure of mitochondira
2. Write brief note on Glycolysis
3. Explain the krebs cycle?
5 Marks--( Diagrams)
1. Structure of Mitochondria
Central and Peripheral Nervous
System
1 Mark Questions
1. Which are the membranes that cover the brain?
2. Name the components of central nervous system?
3. Name the Sub-division of autonomic nervous system?
4. What is cranium? What is its function? (Imp)
5. What is vagus nerve? What is its function?
2 Marks Questions
1. What are 'gyri" and 'sulci'? What is the advantage
of these structures?
2. Where do you find the cerebro - spinal fludi? What are
its functions? (imp)
3. How is the brain in the human beings
protected from injury? (Imp)
4 Marks Questions
1. Describe the structure of Cerebrum?
2. Describe the structure of the spinal cord.
5 Marks--( Diagrams)
1. Draw the Diagram of human brain and label the parts?
2. Draw a neat labelled diagram of the transverse section of
spinal cord?
( Chemical Co-ordination in plants)
1 Mark Questions
1. What is irritability?
2. What is apical dominance?
2 Marks Questions
1. What are the function of Cytokinins?
2. What are the plants growth substances?
4 Marks Questions
1. What are Auxins? How do they affect on Plant growths?
2. What is the role of gibberellins in the plant growth and
Development?
3. What is the role of plant hormones in plants?
Reflex Action
and Reflex Arc
1 Mark Questions
1. What is a reflex arc? (Imp)
2. In what way reflex actions help us?
3. Which organ of the nervous system is not involved in a
reflex action and why?
4 Which is the decade of brain?
5. Mention the components of reflex arc?
2 Marks Questions
1. Explain how you withdraw your hand immediately and suddenly
without your knowledge when
it
touches a hot object.
3. Wrtie an account on the aesthetic sense of
human brain?
4 Marks Questions
1. What are the differences between conditional reflexes and
Unconditional reflexes?
2. What are the differences between conditional reflexes and
Unconditional reflexes?
3. Write an account on Ivan Pavlov's experiment on dog to
demonstrate conditioned reflexes?
5 Marks--( Diagrams)
1. Draw the diagram of reflex arc and label the parts.
Chemical
control co- ordination in Animals
1 Mark Questions
1. What is a hormone?
2. What is a target tissue?
3. What is a mixed gland, give an example?
4. What is the role of oestrogen?
5. What is simple goitre?
6. What is the major role of progesterone?
7. Which hormone is called as flight hormone?
8. What is Tetany?
9. What is the function parathermone?
2 Marks Questions
1. Write short note on Cretinism?
2. Write short note on Diabetes Mellitus?
3. Write short note on gigantism and dwarfism.
4 Marks Questions
1. What is the importance of pituitory gland in body?
Mention the hormones and their function of
this
gland?
2. Write a brief account of adrenal glands
Human Nervous System
1 Mark Questions
1. Explain about neuron with the help of a
diagram?
2. Why the damage in certain diseases like
polio is permanent?
(Reproduction in plants)
1 Mark Questions
1. How fungal spores are dispersed ?
2. What is layering ?
3. What are leaf buds? In what way they are
useful for the plant?
4. What is grafting?
2 Marks
Questions
1. What is the reproduction? what is the
importance of reproduction?
2. Write a short note an advantages of
vegetative propagation?
3. write a short note on methods of grafting?
4 Marks questions
1. what
are the differences between
asexual and sexual reproduction?
2. What
is binary fission? where do you see this method of reporducion?
3. Write a short note on the advantages of
vegetative propagation?
4. Write an account of types of asexual reproduction in plants and give
examples?
1. what is totipotency?
2. What is Explant
3. When does callus form?
(or) Define callus ? (or) What is callus?
4. who is discovered development of haplotid plants through
tissue culture.
2 Marks Questions
1. Define callus ?
2. What is embryo rescue? when is this method followed?
3. How is developed
haplaid plants through tissue culture?
4. What should be the components in a plant tissue culture
medium?
4 Marks questions
1. Write advantages of plant tissue culture?
Sexual
Reproduction in Plants
1 Mark Questions
1. What is a micropyll?
2. What is a flower?
3. what is the difference between calyx and corolla?
4. what is polynology?
2 Marks Questions
1. Write an account on the importance of sexual
reproduction?
2. What are the parts of a flower?
3. What is synargids? what is their function?
4 Marks questions
1. Write an account on the structure of a
flower ?
2. Write a note on structure of embryosac with the help of
diagram?
5 Marks--( Diagrams)
1. Draw the longitudinal section of Datura-
flower and label the parts.
2. Draw the structure of an ovule and label the parts?
Sexual Reproduction
Animals
(Paramoecium,
Earthworm)
1 Mark Questions
1. Name two animals in which external fertilization occurs?
2. When is an animal called as hermaphrodite?
3. What is the function of macronucleus of paramoecium?
4. What prevents self-fertilization in earthworm?
5. Which is the function of micronucleus of a paramoecium?
2 Marks Questions
1. Write short notes on sexual dimorphism in animals?
2. What is external fertilization?
3. What is internal fertilization? (Imp)
3. What is internal fertilization? (Imp)
4. What is the dis-advantage of repeated binary fission for
a paramoecium?
4 Marks Questions
1. Describe the conjugation of paramoecium?
2. Describe the reproductive system of earthworm?
Sexual Reproduction in
Animals
1 Mark Questions
1. What is milt?
2. What is spawn?
3. what are the ampluxory pads? how do they help the frog?
4. What is the function of acrosome of a spermatozoan
5. What are the diseases spread by housefly?
2 Mark Questions
1. How can you distinguish
a male frog from a female frog?
2. Bring out the differences between a spermatozoan and an
ovum of a frog?
(June-06)
3. Where does fertilization occur in frog? what do you call this type of fertilization?
4. How do you differentiate between the animal and vegetal
poles of the ovum of frog?
5. Briefly describe the ovary of female frog?
4 Mark Questions
1. Describe the reproductive system of housefly?
2. Describe the male reproductive system of frog?
5 Marks--( Diagrams)
1. Draw the diagram of male reproductive system of frog and
label the parts?
2. Draw the diagram of female reproductive system of frog
and label the parts?
Human Reproductive System
1 Mark Questions
1. what is meant by ovulation in humanbeings?
2. What are the parts of male human reproductive system?
3. Name the accessary glands that are associated with human
male reproductive system?
4. Name the sex hormone secreted by testes?
5. What are
tubules present in the testes and
what is their function?
6. Where do you find germinal epithelium? what is its
function?
2 Marks
Questions
1. What is corpus
luteum and what is its function?
2. Describe the structure of human speratozoan?
3. Give an account of
menstrual cycle in human being?
4. What are the methods to be adopted to prevent
fertilization? ( IMP)
5. What is foetus?
4 Marks questions
1. Give an account of menstrual cycle in human beings?
2. Bring out the differences between a spermatozoan and an
ovum?
3. What is implantation ? How does it occur in human beings
? ( Imp)
5 Marks--( Diagrams)
1. Draw the diagram of Human spermatozoan and lable the
parts
2. Draw the diagram of male reproductive system of human
beings and label the parts
HIV- AIDS
1 Mark Questions
1. which subgroup does HIV belong?
2. In India, when and where the first HIV ifected person was
derected?
3. Define the term HIV?
4. Define the term AIDS?
5. What are the enzymes present in the HIV?
6. Your friend forces you to smoke with him? How do you
react?
2 Marks Questions
1. Which enzyme is responsible for the unique nature of HIV?
2. Write an account on HIV?
3. Write a short notes on AIDs disease?
4 Marks Questions
1. Why life skills are necessary for energy are necessary
for every one to face the challenges of life
especially
in the context of HIV... AIDs? which life skills should be practiced?
2. If one has taken the decision not to be infected with
HIV, what precautions should he/she take?
3. A person intially
infected with HIV reaches the AIDs
stage. what are the different stage. what
are
the different stages he passed through ?
4. What are the modes of HIV Transmission?
1. Why do sports persons take glucose?
2. What are biologically complete proteins? Give two
examples?
3. Which enzymes hydrolyse lactose and Sucrose?
4. Why is it easy to store fats in the body?
5. Write an account on calcium?
2 Marks Questions
1. What is fluorosis? How does it affect the body?
2. What is iodised salt? Why is it advisable to take iodised
salt?
3. What is the disadvantage if you eat only rice or meat?
4. What is the function of sodium ions in the body?
5. Why some of the amino acids are called essential
aminoacids?
4 Marks Questions
1. In what way calcium helps the body?
2. How are proteins useful to the body?
3. What are the functions of iron in the body?
3. What are the functions of iron in the body?
Deficiency Diseases
1 Mark Questions
1. What is malnutrition?
2. Which is the only treatment available for obesity?
3. What is the main cause of obesity?
4. Which cells of the body are responsible for obesity and
why?
2 Marks Questions
1. What are the
steps to be taken by obese people to
reduce their weight and size?
2. How is obesity a health hazard ?
3. What are the differences between kwashiorkor and
marasmus?
4. Why exercise is compulsory for obesity
treatment?
4 Marks Questions
1. What are the effects of Kwashiorkor on children?
2. How does marasmus affect a child?
Vitamins- Sourses &
Deficiency Diseases
1 Mark Questions
1. Write the abbreviation of NIN?
2. Name the various vitamins in vitamin B - complex?
3. What is the chemical name of vitamin A?
4. In what way vitamins are available for our body?
5. Which vitamin can be stored in the body for a long time?
up to 6 to 9 months?
6. What is the chemical name of Vitamin D?
7. What is the chemical name of vitamin B12
2 Marks Questions
1. What is the loss if rice
is polished or repeatedly washed? what is the disease it causes?
2. What is the chemical name of niacin? why is it required
by the body?
3. Howmany types of vitamins are there in our
body? what are they?
4. How do you identify pellagra?
5. write an account on glossitis?
6. What is the method evolved by the national Institute
and Nutrition Hyderabad to prevent
blindness
in children?
4 Mark Questions
1. Mention various diseases caused by the deficiency of
vitamin A?
2. Mention the factors that lead to the discovery of vitamins?
3. How vitamin C helps the body?
Tropical Diseases
1 Mark Questions
1. What is infection?
2. What are the non-living reservoirs for spreading diseases?
3. Give examples for
airborne diseases?
4. Which diseases are spread through droplet infection?
5. What is incubation period?
2 Marks Questions
1. What
are the methods by which diseases are
transmitted? Give one or two examples for each method?
2. How do the unhygienic conditions lead to diseases? Give
one example?
3. Describe the changes that happen to the parasite and
host duaring incubation period?
4. What is Recovery period?
4 Marks Questions
1. What is health and what is process of
disease?
2. What are the
methods by which diseases are transmitted? Give one or two examples for each method?
Common Diseases
1 Mark Questions
1. What is the causative virus of measles?
2. What are the vertibrate hosts of encephalities?
(or)
What
is the cansative virus of encephalitis?
3. Which disease is called as Rubella?
4. When does the chill and fever occur in malarial fever?
5. In which part of the human body the filariasis worm
lives?
2 Marks Questions
1. What are the symptoms of malarial fever?
2. How to control malarial infection?
3. Why the skin colour is yellow in jaundice?
4. What are the symptoms of mumps?
4 Marks Questions
1. Describe the changes that take place in mosquito in the
malarial parasite ?
2. What measures do you take to control malarial infection?
3. Why encephalitis is a fatal disease ? How it is caused?
1 Mark Questions
1. What is first aid?
2. what is the aim of giving first aid to save
a drowned person?
3. What if green stick fracature?
2 Marks Questions
1. What is first aid ? Mention its purpose?
Mention its purpose?
2. Describe the process of giving artificial
respiration?
4 Marks Questions
1. What are the rules to be followed while giving first aid
to save human life?
2. What first aid do you render for fractures? (Imp)
3. Mention the symptoms of a fracture?
Health Agencies
2 Marks Questions
1. What are the functions of health care system?
2. What type of service are expected by any health care
system?
4 Marks Questions
3. Describe the duties of village health guide?
4. What are the main functions of a primary - health care
centre?
5. How does a local dayee differ from Anganwadi worker in
the nature of duties they perfrom?
(or)
Write
the difference between duties of Local dayee and Anganwadi worker.
Eradication Of Blindness
1 Mark Questions
1. Which Vitamin deficiency causes blindness?
2. How is night blindness and blindness can be eradicated?
3. Write some names of organisations to help to educate and
implement the eradication of blindness?
4. What actions
should be taken by NIN to eradicate night blindness?
5. where is located NIN?
6. What is NIN and Explain about NIN?
2 Marks Questions
1. Mention the Measures
to be taken
to eradicate blindness
in children by
NIN?
2. What are food items which have vitamin A?
4 Marks Questions
1. What are the steps taken to prevent blindness?
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