Vania Mezzina
Vania Mezzina voted up John McCann's answer

Na^+ and K^+ keep the charge potential across cell membranes by being pumped into and out of cells. A simple use here is too keep a slightly negative charge on the interior of the cell membrane and a slightly positive charge on the exterior of the membrane. The switch between these two electronegative potentials conduct … Read more

Vania Mezzina
Vania Mezzina voted up John McCann's answer

Na^+ and K^+ keep the charge potential across cell membranes by being pumped into and out of cells. A simple use here is too keep a slightly negative charge on the interior of the cell membrane and a slightly positive charge on the exterior of the membrane. The switch between these two electronegative potentials conduct … Read more