What does a sodium potassium pump do for a cell?

1 Answer

The sodium and potassium ions are pumped in opposite directions across the bio-membranes.

Explanation:

The sodium and potassium ions are pumped in opposite directions across the bio-membranes.
The bio-membranes are made up of chemical and electrical gradients.
These chemical and electrical gradients may be used to drive other transport processes.
In nerve cells of animals, the pump is used to generate gradients of both sodium and potassium ions.