At the peak of the action potential,which of the following ionic movements restores the neuron to its resting potential?
A)Sodium ions move into the cell.
B)Potassium ions move into the cell.
C)Protein anions move out of the cell.
D)Potassium ions move out of the cell.

Question

Quizplus · Accepted Answer

At the peak of the action potential, the voltage-gated potassium channels open and potassium ions move out of the cell due to the concentration gradient and repulsion by the positively charged intracellular environment, leading to repolarization of the membrane and restoration of the resting potential. Sodium ions move into the cell during the depolarization phase of the action potential. Protein anions are not involved in the ionic movements during the action potential.

At the Peak of the Action Potential,which of the Following