At the peak of an action potential: A) The electrical gradient for Na⁺ causes a net movement of this ion out of the cell. B) The concentration gradient for K⁺ tends to move this ion out of the cell. C) K⁺ permeability greatly increases. D) All of these. E) The concentration gradient for K⁺ tends to move this ion out of the cell, and K⁺ permeability greatly increases.

Question

Quizplus · Accepted Answer

The Answer of At the peak of an action potential: A) The electrical gradient for Na⁺ causes a net movement of this ion out of the cell. B) The concentration gradient for K⁺ tends to move this ion out of the cell. C) K⁺ permeability greatly increases. D) All of these. E) The concentration gradient for K⁺ tends to move this ion out of the cell, and K⁺ permeability greatly increases.

At the Peak of an Action Potential