Zoology-(general)

NEET Zoology (general) MCQ Question

Type: MCQ-diagram based-Hard-Class 11

In a diagram representing the changes in membrane potential during the generation of a nerve impulse, which label correctly identifies the phase where the inner side of the membrane is positively charged?

Question diagram
A

Depolarization

B

Resting potential

C

Repolarization

D

Hyperpolarization

Correct Answer

Option A

Detailed Explanation

During depolarization, the membrane becomes freely permeable to Na+, leading to an influx of Na+ ions, which reverses the polarity so that the inner side becomes positively charged as per the NCERT context.

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