At the normal resting potential of a typical neuron, its Na-K ion exchange pump transports
A) 1 intracellular sodium ion for 2 extracellular potassium ions.
B) 2 intracellular sodium ions for 1 extracellular potassium ion.
C) 3 intracellular sodium ions for 1 extracellular potassium ion.
D) 3 intracellular sodium ions for 2 extracellular potassium ions.
E) 3 extracellular sodium ions for 2 intracellular potassium ions.

Question

Quizplus · Accepted Answer

The Na-K ion exchange pump transports 3 intracellular sodium ions out of the neuron and 2 extracellular potassium ions into the neuron, maintaining the resting potential.

At the Normal Resting Potential of a Typical Neuron, Its