The movement of which of the following ions is MOST likely to produce a hyperpolarization following an action potential?
A) potassium
B) calcium
C) sodium
D) organic anion

Question

Quizplus · Accepted Answer

Potassium ions are the major ions responsible for repolarizing the membrane potential during an action potential. The movement of potassium ions out of the cell following an action potential causes the membrane potential to become more negative, resulting in hyperpolarization.

The Movement of Which of the Following Ions Is MOST