How are potassium and sodium transported across plasma membranes?
A) By passive electrolyte channels
B) By coupled channels
C) By adenosine triphosphate enzyme (ATPase)
D) By diffusion

Question

Quizplus · Accepted Answer

Potassium and sodium are primarily transported across plasma membranes by the sodium-potassium pump, which is an ATPase enzyme. This pump uses energy from ATP to actively transport sodium and potassium ions against their concentration gradients.

How Are Potassium and Sodium Transported Across Plasma Membranes