The Sodium-Potassium Pump

A clear animation of a pump in the plasma membrane that exchanges sodium for potassium ions. It uses a little ATP to do that, creating an electrical potential across the membrane because 3 positive sodiums go out and only 2 positive potassiums come in, so the interior becomes negative with respect to the exterior. That provides the energy for signaling, transport, and movement work.

After Watching the Video

Do you have a better understanding of the sodium-potassium pump? Did the visual animations help you comprehend it? Discuss with your peers any questions or curiosities from the video!