The operation of the sodium-potassium "pump" moves
A) sodium and potassium ions into the cell.
B) sodium and potassium ions out of the cell.
C) sodium ions into the cell and potassium ions out of the cell.
D) sodium ions out of the cell and potassium ions into the cell.
E) sodium and potassium ions into the mitochondria.

Question

Quizplus · Accepted Answer

The sodium-potassium pump moves three sodium ions out of the cell and two potassium ions into the cell, creating an electrochemical gradient that is used for various cellular functions, such as nerve impulses and muscle contractions. Therefore, sodium ions are moved out of the cell and potassium ions are moved into the cell.

The Operation of the Sodium-Potassium "Pump" Moves