What characterizes repolarization, the second phase of the action potential?

Here is the answer for the question – What characterizes repolarization, the second phase of the action potential?. You’ll find the correct answer below

What characterizes repolarization, the second phase of the action potential?
A. Before the membrane has a chance to reach a positive voltage, it repolarizes to its negative resting value of approximately -70 mV.

B. Once the membrane depolarizes to a threshold value of approximately -55 mV, it repolarizes to its resting value of -70 mV.

C. Once the membrane depolarizes to a peak value of +30 mV, it repolarizes to its negative resting value of -70 mV.

D. As the membrane repolarizes to a negative value, it goes beyond the resting state to a value of -80 mV.

The Correct Answer is

C. Once the membrane depolarizes to a peak value of +30 mV, it repolarizes to its negative resting value of -70 mV.

Reason Explained

C. Once the membrane depolarizes to a peak value of +30 mV, it repolarizes to its negative resting value of -70 mV. is correct for What characterizes repolarization, the second phase of the action potential?

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