In animal cells, the action of the Na⁺-K⁺ translocating ATPase results in a net export of A) Na⁺, with no associated net change in membrane potential. B) K⁺, with no associated net change in membrane potential. C) Depending on the cells' homeostatic requirements, it can be either Na⁺ or K⁺. D) Na⁺, and an associated positive charge. E) K⁺, and an associated positive charge.

Question

Quizplus · Accepted Answer

The Na⁺-K⁺ ATPase pumps 3 Na⁺ ions out of the cell and 2 K⁺ ions into the cell, resulting in a net export of positive charge (Na⁺) and contributing to the membrane potential.

In Animal Cells, the Action of the Na+-K+ Translocating ATPase

In Animal Cells, the Action of the Na⁺-K⁺ Translocating ATPase