Question

Match List I with List II :

List - I		List – II
A.	Schwann cells	i.	Neurotransmitter
B.	Synaptic knob	ii.	Cerebral cortex
C.	Bipolar neurons	iii.	Myelin sheath
D.	Multipolar neurons	iv.	Retina

Choose the correct answer from the options given below :

• A. A-III, B-I, C-IV, D-II
• B. A-I, B-IV, C-II, D-III
• C. A-IV, B-III, C-II, D-I
• D. A-II, B-III, C-I, D-IV

Answer 1

The Correct Option is A

The question asks us to match items from List I, which represents certain biological structures or terms, with items from List II, which indicate their functions or associations.

1. Schwann cells: These are glial cells found in the peripheral nervous system. Schwann cells are essential for the formation of the myelin sheath around neuronal axons. Therefore, they are matched with iii. Myelin sheath.
2. Synaptic knob: This is a part of the neuron that is involved in the transmission of signals to the next neuron at the synapse. It plays a key role in releasing neurotransmitters. Hence, it is associated with i. Neurotransmitter.
3. Bipolar neurons: These are a type of neuron with two extensions and are most commonly associated with sensory pathways such as those in the retina of the eye. Therefore, they are related to iv. Retina.
4. Multipolar neurons: These neurons, with multiple dendrites and a single axon, are primarily found in the cerebral cortex and other parts of the brain. Therefore, they are matched with ii. Cerebral cortex.

Thus, the correct matching is:

• A - III (Schwann cells - Myelin sheath)
• B - I (Synaptic knob - Neurotransmitter)
• C - IV (Bipolar neurons - Retina)
• D - II (Multipolar neurons - Cerebral cortex)

Therefore, the correct answer is: A-III, B-I, C-IV, D-II.