10th Biology Practice Questions

I. Choose the correct answer:
1. The total no. of pairs of peripheral nerves in man are: ( )
a) 41 b) 42 c) 43 d) 44
2. The outer membrane that covers brain is: ( )
a) Myelin Sheath b) Dura Matter c) Arachnoid membrane d) Pia matter
3. Fluid that flows between the outer and middle membranes that cover the brain: ( )
a) Lymph b) plasma c) cerebrospinal fluid d) serum
4. Cranial nerve that controls heart beat is: ( )
a) Precaval b) post caval c) Aorta d) Vagus
5. All the spinal nerves are: ( )
a) Afferent nerves b) Motor nerves c) Sensory nerves d) Mixed nerves
6. Which part of the nervous system control involuntary actions: ( )
a) medulla oblongata b) cerebellum c) Hypothalamus d) Spinal cord
7. The weight of the brain in the total weight of the body is about: ( )
a) 2% b) 3% c) 4% d) 5%
8. The decade 1990 to 2000 is known as decade of : ( )
a) Heart b) Brain c) Kidney d) Eye
9. Ivon Pavolv conducted experiments on ( )
a) Unconditioned reflexes b) Action of cerebrospinl fluid c) Conditioned Reflexes d) Actions of pons varoli
10. Each neuron receives 1000 to 10,000 inputs and conducts electrical impulses at a speed of: ( )
a) 0.6 to 120 meters/ min b) 0.1 to 10 meters/ min c) 1 to 200 meters/ min d) none
II. Fill in the blanks:
1. Nerve is a budle of —
2. Hypothalamus secretes —
3. The fluid that flows between the outer and middle membranes that cover the brain is –
4. Centres for regulating B.P., hunger and emotions are present in —
5. Spinal cord plays a major role in —
6. Cerebrum is the seat of — and —
7. — portion of brain has centres that control emotions like anger, pain etc.
8. The decade from 1990 to 2000 is known as —
9. The famous Russian scientist who conducted experiments on conditioned reflexes was —
10. Our standing in attention when we hear our National Anthem is a — reflex.
11. The information about a stimulus is analysed by — of spinal cord.
12. The structural and functional unit of a reflex action is called —
13. The sudden and involuntary actions that save us from danger
are —
14. Conditioned reflexes are not —
15. Brain is solely dependent on — its energy requirements
16. Peripheral nervous system has — pairs of nerves
17. The inner membrane of brain is called —
III. Match the following:
Set A: Group A Group B
1. Nervous system ( ) A) Nodes of Ranvier
2. Sensory nerves ( ) B) Efferent neurons
3. Motor nerves ( ) C) Axon
4. Mixed nerves ( ) D) Receptors
5. Gaps of myelin sheath ( ) E) Dendrites F) Afferent neurons G) Motor and sensory nerves
Set B: Group A Group B
1. Reflex Arc ( ) A) Not inherited reflexes
2. Experiments on Dog ( ) B) Pituitory
3. Conditioned reflexes ( ) C) Dendrites
4. Projections of cellbody ( ) D) Inner neuron
5. Hypothalamus ( ) E) Pavlov’s experiment F) Nodes of Ranvier G) Cyton
ANSWERS: I. Choose the correct answer:
1) C 2) D 3) C 4) D 5) D 6) D 7) A 8) B 9) C 10)A
II. Fill in the blanks: 1. Axons 2. Hormones 3.Cerebro Spinal fluid 4.Hypothalamus 5. Reflex actions 6. Intelligence, Thinking and
Judgement 7. Diencephalon 8. Decade of brain 9.Ivon pavlov 10.Conditioned reflex 11. Neurons 12. Reflex arc 13. Reflex actions
14. Inherited 15. Glucose 16. 43 17. Dura matter
III. Matching: Set A: 1)D 2)F 3)B 4)G 5)A Set B: 1)D 2)E 3)A 4)C 5)B.

I. Choose the Correct Answers
1. The vitamin that is destroyed on heating ( )
A) E B) C C) A D) B
2. Deficiency of ‘Thiamine’ ( )
A) Beri-Beri B) Pellagra C) Anaemia D) Rickets
3. Rubella disease is described first by the scientist ( )
A) Abu Baqur B) Ronald Ross C) Laveris D) Darwin
4. The kilocalories of energy released from one gram of fat is ( )
A) 5.49 B) 4.59 C) 9.45 D) 9.54
5. “Pellagra” is caused due to the deficiency of ( )
A) Niacin B) Riboflavin C) Thiamine D) Pyridoxine
6. A vehicle born transmitted diseases are ( )
A) Plague and malaria B) Chicken pox and tetanus C) Mumps and common cold D) Eye infection and influenza
7. Excess of fat in the body is stored in ( )
A) Adipose-tissue B) Acrosome C) Erythrocytes D) Bone-marrow
8. The energy released by 1 gram of Glucose is ( )
A) 6 Kcal B) 4 Kcal C) 5 Kcal D) 3 Kcal
9. Biologically complete proteins are found in ( )
A) Potato, Onion, Carrot B) Apple, Egg, Wheat C) Rice, Meat, Butter
D) Meat, Milk, Egg
10. Deficiency of pantothenic aid result in burning of ( )
A) Stomach B) Hands C) Feet D) Heart
11. When more than 20% of the body weight is due to fat, the person
is suffering from ( )
A) Marasmus B) Kwashiorkor C) Scurvy D) Obesity
12. Inflammation of lymph – vessels and lymphglands result in a disease known as ( )
A) Malaria B) Filaria C) Encephalitis D) Hepatitis
13. The story of vitamins dates back to ( )
A) 15th century B) 16th century C) 17th century D) 18th century
II. Fill in the Blanks.
1. Cellulose is a —
2. Milk sugar is called —
3. Kwashiorkor is caused due to the deficiency of —
4. Yellow colour of urine is due to the presence of — pigment
5. Sources of infection in diseases like Tuber culosis, mumps and whopping cough is —
6. In Papaya fruit — vitamin will be more
7. Sunlight converts — present in foods in the body into vitamin D.
8. The larvae of filarial worm are known as —
9. In Glossitis, the — becomes red and glazed.
10. Cane sugar is called —
11. Amino acids are the units of —
III. Match the Following
I. Group – A Group – B
1. Malaria [ ] A) Wuchereria Bancrofti
2. Measles [ ] B) Plasmodium vivax
3. Encephalitis [ ] C) Myxo virus parotidis
4. Mumps [ ] D) Arbo virus
5. Filariasis [ ] E) Paramyxo-virus F) Hepatitis-B G) Hepatitis-D
II. Group – A Group – B
6. Deficiency of Vitamin ‘D’ [ ] A) Pellagra
7. Deficiency of Riboflavin [ ] B) Pernicious anaemia
8. Deficiency of Niacin [ ] C) Rickets
9. Deficiency of cyanocobalamin [ ] D) Burning of feet
10. Deficiency of pantothenic acid [ ] E) Beri-Beri F) Glossitis
G) Anaemia
ANSWERS
CHOOSE THE CORRECT ANSWERS
1)B 2)A 3)A 4)C 5)A 6)A 7)A 8)B 9)D 10)D 11)D 12)B 13)D
FILL IN THE BLANKS
1. Carbohydrate 2. Lactose 3. Proteins 4. Bilirubin 5. Droplets of Saliva 6. ‘A’ 7. Cholesterol 8. Microfilaria 9. Tongue 10. Sucrose 11. Proteins
MATCH THE FOLLOWING
I. 1)B 2)E 3)D 4)C 5)A II. 1)C 2)F 3)A 4)B 5)D.