CONTROL AND COORDINATION – MCQs
1. The structural and functional unit of the nervous system is:
A) Axon
B) Brain
C) Neuron
D) Spinal cord
Answer: C) Neuron
2. The largest part of the human brain is:
A) Cerebellum
B) Cerebrum
C) Medulla
D) Pons
Answer: B) Cerebrum
3. The main function of the cerebellum is:
A) Intelligence
B) Memory
C) Balance and coordination of body movements
D) Smelling
Answer: C) Balance and coordination of body movements
4. The part of brain which controls involuntary actions like heartbeat and breathing is:
A) Cerebrum
B) Cerebellum
C) Medulla oblongata
D) Pons
Answer: C) Medulla oblongata
5. The function of receptors in our body is to:
A) Carry messages
B) Detect information from environment
C) Respond to stimuli
D) Control voluntary actions
, Answer: B) Detect information from environment
6. Which of the following carries impulses from sense organs to brain?
A) Motor neurons
B) Sensory neurons
C) Mixed neurons
D) Dendrites
Answer: B) Sensory neurons
7. Reflex actions are:
A) Voluntary
B) Involuntary
C) Both
D) None
Answer: B) Involuntary
8. Reflex action is controlled by:
A) Brain
B) Spinal cord
C) Heart
D) Cerebellum
Answer: B) Spinal cord
9. The junction between two neurons is called:
A) Axon
B) Synapse
C) Dendrite
D) Cell body
Answer: B) Synapse
10. The part of brain responsible for intelligence and memory is:
A) Cerebellum
B) Cerebrum
C) Medulla
, D) Hypothalamus
Answer: B) Cerebrum
11. Which of the following is not a part of human brain?
A) Cerebrum
B) Cerebellum
C) Medulla
D) Spinal cord
Answer: D) Spinal cord
12. The plant hormone that promotes cell division is:
A) Auxin
B) Cytokinin
C) Gibberellin
D) Abscisic acid
Answer: B) Cytokinin
13. The plant hormone responsible for growth of stem is:
A) Auxin
B) Cytokinin
C) Gibberellin
D) Ethylene
Answer: C) Gibberellin
14. Which hormone helps in the ripening of fruits?
A) Auxin
B) Ethylene
C) Gibberellin
D) Cytokinin
Answer: B) Ethylene
15. The plant hormone that inhibits growth is:
A) Auxin
B) Abscisic acid
1. The structural and functional unit of the nervous system is:
A) Axon
B) Brain
C) Neuron
D) Spinal cord
Answer: C) Neuron
2. The largest part of the human brain is:
A) Cerebellum
B) Cerebrum
C) Medulla
D) Pons
Answer: B) Cerebrum
3. The main function of the cerebellum is:
A) Intelligence
B) Memory
C) Balance and coordination of body movements
D) Smelling
Answer: C) Balance and coordination of body movements
4. The part of brain which controls involuntary actions like heartbeat and breathing is:
A) Cerebrum
B) Cerebellum
C) Medulla oblongata
D) Pons
Answer: C) Medulla oblongata
5. The function of receptors in our body is to:
A) Carry messages
B) Detect information from environment
C) Respond to stimuli
D) Control voluntary actions
, Answer: B) Detect information from environment
6. Which of the following carries impulses from sense organs to brain?
A) Motor neurons
B) Sensory neurons
C) Mixed neurons
D) Dendrites
Answer: B) Sensory neurons
7. Reflex actions are:
A) Voluntary
B) Involuntary
C) Both
D) None
Answer: B) Involuntary
8. Reflex action is controlled by:
A) Brain
B) Spinal cord
C) Heart
D) Cerebellum
Answer: B) Spinal cord
9. The junction between two neurons is called:
A) Axon
B) Synapse
C) Dendrite
D) Cell body
Answer: B) Synapse
10. The part of brain responsible for intelligence and memory is:
A) Cerebellum
B) Cerebrum
C) Medulla
, D) Hypothalamus
Answer: B) Cerebrum
11. Which of the following is not a part of human brain?
A) Cerebrum
B) Cerebellum
C) Medulla
D) Spinal cord
Answer: D) Spinal cord
12. The plant hormone that promotes cell division is:
A) Auxin
B) Cytokinin
C) Gibberellin
D) Abscisic acid
Answer: B) Cytokinin
13. The plant hormone responsible for growth of stem is:
A) Auxin
B) Cytokinin
C) Gibberellin
D) Ethylene
Answer: C) Gibberellin
14. Which hormone helps in the ripening of fruits?
A) Auxin
B) Ethylene
C) Gibberellin
D) Cytokinin
Answer: B) Ethylene
15. The plant hormone that inhibits growth is:
A) Auxin
B) Abscisic acid
