At the peak of the action potential, A)The electrical gradient for K⁺ tends to move this ion out of the cell B)The concentration gradient for K⁺ tends to move this ion out of the cell C)The permeability for K⁺ greatly increases D)Both the electrical gradient for K⁺ tends to move this ion out of the cell and the concentration gradient for K⁺ tends to move this ion out of the cell occur E)The electrical gradient for K⁺ tends to move this ion out of the cell, the concentration gradient for K⁺ tends to move this ion out of the cell and the permeability for K⁺ greatly increases occur

Question

Quizplus · Accepted Answer

At the peak of the action potential, both the electrical gradient and concentration gradient for K⁺ tend to move this ion out of the cell due to the equilibrium potential being reached. Additionally, the permeability for K⁺ greatly increases, allowing for a greater movement of ions across the membrane. Therefore, all three events occur at the peak of the action potential.

At the Peak of the Action Potential