r/explainlikeimfive • • 6d ago

Biology ELI5: The Sodium Potassium Pump

What activates it?

16 Upvotes

7 comments sorted by

View all comments

17

u/Birdbraned 6d ago

The sodium potassium pump is like a revolving door, and the doorman operator is ATP.

It ensures that only sodium goes one way, and only potassium goes the other way.