Assertion (A): Repolarisation of the axonal membrane results in the development of positive charge on the outer side and negative charge on the inner side
Reason (R): Nerve impulse is another name for action potential
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Origin of Resting Membrane Potential |Â Action Potential |
 86%
Level 1: 80%+
Hints
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
Assertion (A): The nerve impulse generated at a point in the neuron faces resistance at the sites where myelin sheath is present
Reason (R): At sites of myelin sheath axonal membrane is not exposed to the extra cellular fluid
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): At sites of myelin sheath axonal membrane is not exposed to the extra cellular fluid
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Nervous System |
 55%
Level 3: 35%-60%
Hints
Assertion (A): Acetylcholine-esterase is present in the muscle cell or post synaptic neuron
Reason (R): Acetylcholine-esterase breaks down acetylcholine into acetate and choline
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is false but (R) is true.
4. Both (A) and (R) are false.
Reason (R): Acetylcholine-esterase breaks down acetylcholine into acetate and choline
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is false but (R) is true.
4. Both (A) and (R) are false.
Subtopic: Â Synapse |
Level 3: 35%-60%
Hints
Assertion (A): Procenephalon becomes thalamus and hypothalamus
Reason (R): Mesencephalon becomes mid-brain
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Mesencephalon becomes mid-brain
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Nervous System |
 81%
Level 1: 80%+
Hints
Assertion (A): The reflex pathway comprises atleast one afferent neuron (receptor) and one efferent (effector or excitor) neuron.
Reason (R): The afferent neuron transmits impulse to CNS.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): The afferent neuron transmits impulse to CNS.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Motor Functions of Spinal Cord |
 76%
Level 2: 60%+
Hints
Assertion (A): The peripheral nervous system is composed of all the nerves of the body associated with central nervous system.
Reason (R): Central nervous system is the site of information processing and control.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Central nervous system is the site of information processing and control.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Nervous System |
 78%
Level 2: 60%+
Hints
| Assertion (A): | Electrical synapses are common in our nervous system. |
| Reason (R): | Electrical synapses allow slower impulse transmission than chemical synapses. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Â Nervous System |Â Origin of Resting Membrane Potential |Â Action Potential |Â Synapse |
 86%
Level 1: 80%+
Hints
Assertion (A): Fovea is the point where visual acuity (resolution) is maximum.
Reason (R): Fovea is a thinned-out portion of sclera.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Fovea is a thinned-out portion of sclera.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
 69%
Level 2: 60%+
Hints
Assertion (A): The choroid layer is thin over the posterior one-third of eye ball and is thick in the rest two-third part.
Reason (R): Choroid is the outermost layer of eye ball.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Choroid is the outermost layer of eye ball.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
 63%
Level 2: 60%+
Hints
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
Assertion (A): The sensory neuron from toes to CNS is one of the longest nerve in our body.
Reason (R): Sensory nerve from synapse at both dendrites and axon terminal.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Sensory nerve from synapse at both dendrites and axon terminal.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Nervous System |
Level 3: 35%-60%
Hints
© 2025 GoodEd Technologies Pvt. Ltd.