The difference between sodium and potassium in the generation of action potential is that:
A)sodium causes repolarization of the cell membrane, and potassium causes depolarization of the cell membrane.
B)sodium causes unipolarization of the cell membrane, and potassium causes repolarization of the cell membrane.
C)sodium causes repolarization, and potassium is not required in the action potential mechanism.
D)sodium causes depolarization of the cell membrane, and potassium causes repolarization of the cell membrane.

Question

Quizplus · Accepted Answer

Sodium (Na+) causes depolarization of the cell membrane, leading to the generation of the action potential, while potassium (K+) causes repolarization of the cell membrane by moving out of the cell, bringing the membrane potential back to its resting state. Therefore, option D is the correct choice.

The Difference Between Sodium and Potassium in the Generation of Action