MarksRiser
MarksRiser
Zoology-(general)

NEET Zoology (general) MCQ Question

Type: MCQ-numerical-Medium-Class 11

If the resting potential of a neuron is -70 mV and the depolarization at site A causes the potential to reach +30 mV, what is the total change in the membrane potential during depolarization?

A

100 mV

B

70 mV

C

30 mV

D

60 mV

Correct Answer

Option A

Detailed Explanation

The membrane potential changes from -70 mV to +30 mV, resulting in a total change of 100 mV (from -70 mV to 0 mV is 70 mV, and from 0 mV to +30 mV is another 30 mV).

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