Control and Coordination MCQ
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Which part of the brain coordinates a reflex action?
A. Cerebrum
B. Cerebellum
C. Spinal Cord
D. Medulla Oblongata
2. The structural and functional unit of a brain is
A. Neuron
B. Synapse
C. Cerebrum
D. Medulla Oblongata
3. Plant movement towards light is
A. Phototropism
B. Gravitropism
C. Hydrotropism
D. Chemotropism
4. Which gland of the body maintains the biological clock (circadian rhythm)?
A. Pituitary
B. Thyroid
C. Pineal
D. Thyroid
5. A hormone which regulates the growth of the body is
A. Thyroxin
B. Growth Hormone
C. Growth Hormone Releasing Factor
D. All of the above
6. The hormone responsible for a male secondary sexual character is
A. Testosterone
B. Oestrogen
C. Growth Hormone
D. Thyroxin
7. The Hormone responsible for a female secondary sexual character is
A. Testosterone
B. Oestrogen
C. Growth Hormone
D. Thyroxin
8. Emergency hormone is
A. Adrenaline
B. Thyroxin
C. Growth Hormone
D. Somatostatin
9. Insulin is a
A. Hormone
B. Enzyme
C. Both
D. None
10. Which gland controls the release of thyroxin and growth hormones
A. Hypothalamus
B. Pituitary
C. Thymus
D. Pineal
11. Plant hormone responsible for growth is
A. Auxin
B. Gibberellin
C. Cytokinin
D. All
12. Which hormone is present in the wilting leaf?
A. Auxin
B. Gibberellin
C. Cytokinin
D. Abscisic acid
13. Neurotransmitters are secreted by dendrites in
A. Synapse
B. Axon
C. Neuron
D. All
14. Master gland of Endocrine Orchestra is:
A. Pineal B. Pituitary C. Thyroid D. Adrenal Gland.
Answers:
1. Spinal Cord 2. Neuron 3. Phototropism 4.Pineal 5. All 6. Testosterone 7. Oestrogen 8. Adrenaline 9.Hormone 10. Hypothalamus 11. All 12. Abscisic acid 13. Synapse 14. Pituitary
Next: How organisms reproduce MCQ.
See also: MCQ from Class 10 Science.
Control and Coordination MCQ
Ref: ch7
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