Which of the following statements best explains why the sodium-potassium pump is an electrogenic pump?
A) It transports equal quantities of Na+ and K+ across the membrane in opposite directions.
B) It is used to drive the transport of glucose against a concentration gradient.
C) It decreases the voltage difference across the membrane.
D) It generates voltage across the membrane.

Question

Quizplus · Accepted Answer

The sodium-potassium pump is considered an electrogenic pump because it moves three Na+ ions out of the cell and two K+ ions into the cell for each cycle, creating a net charge difference across the membrane and thus generating a voltage. This action contributes to the membrane potential of cells.

Which of the Following Statements Best Explains Why the Sodium-Potassium