A sodium-potassium pump ________.
A) moves three potassium ions out of a cell and two sodium ions into a cell while producing ATP for each cycle
B) moves three sodium ions out of a cell and two potassium ions into a cell using energy from ATP hydrolysis
C) moves three potassium ions out of a cell and two sodium ions into a cell using energy from ATP hydrolysis
D) move three sodium ions out of a cell and two potassium ions into a cell and generates an ATP in each cycle

Question

Quizplus · Accepted Answer

The sodium-potassium pump, also known as the Na+/K+ ATPase, utilizes energy from ATP hydrolysis to transport three sodium ions out of a cell and two potassium ions into a cell, maintaining the ion concentration gradient across the plasma membrane of cells. This process requires the hydrolysis of one ATP molecule for each cycle of ion transport. Therefore, option B is the correct choice.

A Sodium-Potassium Pump ________