The electrogenic Na+ K+ ATPase plays a critical role in cellular physiology by
Extruding 3 Na+ out of the cell in exchange for taking two K+ into the cell. Extruding 3 K+ out of the cell in exchange for taking two Na+ into the cell. Using the energy in moving Na+ into the cell or K+ outside the cell to make ATP. Using the energy in moving Na+ outside of the cell or K+ inside the cell to make ATP.