NEET2026BiologyChapterActual
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Transmission of a nerve impulse across an electrical synapse is very similar to impulse conduction along a single axon. Reason (R): At electrical synapses, the membranes of pre- and post-synaptic neurons are in very close proximity, allowing electrical current to flow directly from one neuron into
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct but (R) is not the correct explanation of (A)
- C(A) is correct but (R) is not correct
- D(A) is not correct but (R) is correct
Correct answer
A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
Step-by-step solution
At electrical synapses, the membranes of pre- and post-synaptic neurons are in very close proximity. This allows electrical current to flow directly from one neuron into the other across these synapses. Because of this direct flow of current, the transmission of an impulse across electrical synapses is very similar to impulse conduction along a single axon. Therefore, both Assertion (A) and Reason (R) are correct, and (R) is the correct explanation of (A). Answer: Both (A) and (R) are correct and (R) is the correct