(1 MARKS)
1. Which of the following is the control and coordination center in humans?
a) Brain and spinal cord b) Peripheral nervous system c) Endocrine system d) Respiratory system
2. Which of the following is a plant hormone?
a. Insulin b. Thyroxin c. Oestrogen d. Cytokinin
3. Which of the following is NOT a type of neuron?
a) Sensory neuron b) Motor neuron c) Relay neuron d) Respiratory neuron
4. The chemical messengers released by endocrine glands are called:
a) Hormones b) Neurotransmitters c) Enzymes d) Digestive juices
5. Which of the following glands is responsible for the regulation of metabolism?
a) Thyroid gland b) Adrenal gland c) Pituitary gland d) Pancreas
6. The hormone responsible for the regulation of blood glucose levels is:
a) Insulin b) Glucagon c) Adrenaline d) Thyroxine
7. The sense of smell is detected by:
a) Taste buds b) Olfactory receptors c) Touch receptors d) None of the above
8. The sense of touch is detected by:
a) Olfactory receptors b) Taste buds c) Touch receptors d) None of the above
9. Which of the following is responsible for the coordination of voluntary movement in humans?
a) Cerebrum b) Cerebellum c) Medulla oblongata d) Hypothalamus
10. Which of the following is responsible for the regulation of heart rate and breathing in humans?
a) Cerebrum b) Cerebellum c) Medulla oblongata d) Hypothalamus
11. Which of the following is NOT a function of the endocrine system?
a) Regulation of growth and development b) Regulation of metabolism
c) Regulation of heart rate and breathing d) Regulation of reproductive functions
12. The brain is lodged inside the cavity of the skull known as:
a. Piamater b. Duramater c. Cranium d. Meninges
13. The electrical impulse travels in a neuron from –
a. Dendrite →→ Axon →→ Axonal end →→ Cell body
b. Cell body →→ Dendrite →→ Axon →→ Axonal end
c. Dendrite →→ Cell body →→ Axon →→ Axonal end
d. Axonal end →→ Axon →→ Cell body →→ Dendrite
14. Which hormone brings about the development of the mammary gland?
a. Estrogen b. Progesterone c. Relaxin d. Oxytocin
15. Select the mismatched pair
a. Adrenaline – Pituitary gland b. Testosterone – Testes
c. Estrogen – Ovary d. Thyroxine – Thyroid gland.
16. Which one of the following is a nastic movement in plants?
a. Bending of plants towards light b. Growing of roots towards gravity.
c. Dropping of touch – me – not leaflets on touch d. Movement of pollen tubes towards chemicals.
17. Dwarfism results by –
a. Excess secretion of thyroxin b. Less secretion of growth hormone
c. less secretion of adrenaline d. Excess secretion of growth hormone.
18. The neurons that carry nerve impulses from the spinal cord to effectors are called –
a. Sensory neurons b. motor neurons c. Interneurons d. spinal neurons
19. Which of the following statements are true about the brain?
i.The main thinking part of the brain is the hindbrain.
ii.Centers of hearing, smell, memory, sight, etc are located in the forebrain.
iii.Salivation, vomiting, and blood pressure is controlled by the medulla in the hindbrain.
iv.The cerebellum does not control the posture and balance of the body.
a. (i) and (ii) b. (ii) and (iii) c. (i), (ii) and (iii) d. (iii) and (iv)
20. The substance that results in the fall of mature leave and fruits from plants is due to:
a. Auxin b. Gibberellins c. ABA d. Cytokinin
21. Which of the following is a plant hormone?
a. Insulin b. Thyroxin c. Oestrogen d. Cytokinins
22. The gap between two neurons is called a
a. Dendrite b. Synapse c. Axon d. Impulse
23. The brain is responsible for
a. Thinking b. Regulating the heartbeat. c. Balancing the body d. All of the above.
24. A doctor advised a person to take injection of insulin because :
(a) his blood pressure was high (b) his heart beat was high
(c) his blood sugar was high (d) his thyroxine level in blood was high
25. All the voluntary actions of our body are controlled by :
(a) cerebrum (b) cerebellum (c) pons (d) medulla
26. Gustatory receptors will detect ______
(a) light (b) Taste (c) Smell (d) Touch
27. Learning is related to
(a) Hypothalamus (b) Thalamus (c) Cerebellum (d) Cerebrum
28. Which of the following statements are true about brain?
i. The main thinking part of brain is hind brain
ii. Centers of hearing, smell, memory, sight et(c) are located in fore brain
iii. Involuntary actions like salivation, vomiting, blood pressure are
controlled by the medulla in the hind brain
iv. Cerebellum does not control posture and balance of the body
(a) (i) and (ii) (b) (i), (ii) and (iii) (c) (ii) and (iii) (d) (iii) and (iv)
29. The substance that triggers the fall of mature leaves and fruits from
plants is due to
(a) Auxin (b) Gibberellins (c) Cytokinin (d) Abscisic acid
30. Nerves throughout the body other than Brain and spinal cord form
___.
(a) CNS (b) PNS (c) ANS (d) AAS
31. Artifical ripening of fruit is carried out by
(a) Auxins (b) Ethylene (c) Abscisic acid (d) Gibberellins
32. The growth of pollen tubes towards ovules is due to____.
(a) hydrotropism (b) phototropism (c) chemotropism (d) geotropism
33. Involuntary actions including blood pressure, salivation and vomiting are controlled by
the __________ in the hind-brain.
(a) Medals (b) Cerebellum (c) Medulla (d) Cerebrum
34. A potted plant kept in a room tends to bend towards the direction of light. This movement is
called
(a) Photographism (b) Photonastism (c) Photoperiodism (d) Phototropism
35. ____________ is a growth inhibiter hormone in plants
(a) Auxin (b) Cytokinin (c) Abscicic acid (d) Gibberellic acid
36. The endocrine organ present in human female but not in human male is
(a) Testis (b) Ovary (c) Pituitary gland (d) Thymus
37. If there is a deficiency of growth hormone the child becomes _____
(a) Blind (b) Mentally retarded (c) Giant (d) Dwarf
38. People living in coastal areas suffer less from goiter. This is because
(a) They eat sea food (b) They drink sea water (c) They bathe in sea water (d) All of the above
39. The upward or down ward movement of shoot and root respectively is influenced by gravity.
Such movement is called
(a) Gravity movement (b) Gravitytropism (c) Geotropism (d) Gravitism
40. The direction of impulse in a typical neuron is
(a) Axon to dendron (b) Dendron to axon (c) Both a and b are correct (d) Both a and b are wrong
41. One of the following statements is not true about thyroxine. This is :
(a) Thyroid gland requires iron to synthesise thyroxine
(b) It regulates carbohydrate, protein and fat metabolism
(c) Iodine is essential for the synthesis of thyroxine
(d) Thyroid gland can enlarge due to lack of thyroxine
42. Which of the following does not act as an endocrine gland as well as an exocrine gland ?
(a) testis (b) ovary (c) pituitary (d) pancreas
43. The endocrine gland whose malfunctioning causes diabetes disease is :
(a) pituitary (b) pineal (c) parathyroid (d) pancreas
44. The use of iodised salt is recommended to prevent :
(a) diabetes (b) gonorrhoea (c) dysentery (d) goitre
45. Which of the following are often called glands of emergency ?
(a) thyroid (b) pituitary (c) adrenal (d) pancreas
46. Which of the following statements is correct about receptors ?
(a) gustatory receptors detect taste while olfactory receptors detect smell
(b) both gustatory and olfactory receptors detect smell
(c) auditory receptors detect smell and olfactory receptors detect taste
(d) olfactory receptors detect taste and gustatory receptors detect smell
47. The part of brain which takes part in regulating respiration in the human body is :
(a) medulla (b) pons (c) cerebellum (d) cerebrum
48. In a neuron, the conversion of electrical signal to a chemical signal occurs at/in :
(a) dendrite end (b) cell body (c) axon end (d) myelin sheath
49. One of the following gives the correct sequence of the components in a reflex arc. This is :
(a) Receptors → Muscle → Sensory neuron → Motor neuron → Spinal cord
(b) Receptors → Motor neuron → Spinal cord → Sensory neuron → Muscle
(c) Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle
(d) Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle
50. The fluid that lies above and below the meninges of the brain is
called
(a) lymph (b) serum (c) plasma (d) cerebrospinal fluid
