During the chemical process called an action potential, __________ enters the cell (excitation) then __________ leaves the cell (return to the resting potential).

Question

Quizplus · Accepted Answer

During the action potential, sodium enters the cell causing excitation and depolarization. As the membrane potential reaches its peak positive charge, potassium leaves the cell causing repolarization and the return to the resting potential. Therefore, the correct choice is C) sodium enters the cell, and potassium leaves the cell.

During the Chemical Process Called an Action Potential, __________ Enters