During an action potential:
A) the voltage of the cell membrane drops to zero and then returns to -70 mV.
B) the voltage of the cell membrane drops to zero,returns to about -100 mV,and then goes to 70 mV.
C) the voltage of the cell membrane goes to about +30 mV and then drops to -70 mV.
D) the voltage of the cell membrane goes to about +30 mV,drops to -100 mV,and then goes to -70 mV.

Question

Quizplus · Accepted Answer

During an action potential, the voltage of the cell membrane rapidly increases to about +30 mV (depolarization) and then rapidly decreases to below the resting potential of -70 mV (repolarization). Therefore, option C is the best choice as it describes the correct sequence of events during an action potential.

During an Action Potential