Question

Which statement is true regarding action potentials?

A. Action potentials result from an influx of chloride ions.
B. Action potentials travel bidirectionally along the axon.
C. Action potentials involve the repolarization of the cell membrane.
D. Action potentials are generated at the dendrites.

Answer 1

c. Action potentials involve the repolarization of the cell membrane.

Step-by-step explanation:

Action potentials involve the repolarization of the cell membrane. An action potential is a voltage pulse that occurs when the cell membrane depolarizes and then repolarizes.

The depolarization phase is caused by an influx of sodium ions into the cell, while the repolarization phase is caused by the efflux of potassium ions out of the cell. The repolarization of the membrane restores the resting potential of the cell.

Option C is the correct statement regarding action potentials.