In a single sodium-potassium pump cycle, ATP is used with the result that
A)3 sodium ions leave and 2 potassium ions enter.
B)2 sodium ion enters and 1 potassium ion leaves.
C)2 sodium ion leaves and 1 potassium ion enters.
D)3 sodium ions enter and 2 potassium ions leave.

Question

Quizplus · Accepted Answer

The sodium-potassium pump uses ATP to transport 3 sodium ions out of the cell and 2 potassium ions into the cell, maintaining the electrochemical gradient across the cell membrane.

In a Single Sodium-Potassium Pump Cycle, ATP Is Used with the Result