During an action potential,repolarization occurs as a result of
A) potassium ions diffusing to the outside of the cell membrane.
B) potassium ions diffusing to the inside of the cell membrane.
C) sodium ions diffusing to the outside of the cell membrane.
D) sodium ions diffusing to the inside of the cell membrane.
E) sodium and potassium ions not diffusing.

Question

Quizplus · Accepted Answer

During an action potential, depolarization occurs when sodium ions move into the cell, causing the membrane potential to become more positive. Repolarization occurs when potassium ions diffuse to the outside of the cell membrane, causing the membrane potential to become more negative again. Therefore, choice A is the correct answer.

During an Action Potential,repolarization Occurs as a Result of