The Transport Rate of the Sodium-Potassium Cotransporter Increases as

Multiple Choice

The transport rate of the sodium-potassium cotransporter increases as

A) intracellular sodium concentration increases.
B) extracellular sodium concentration increases.
C) intracellular potassium concentration increases.
D) extracellular potassium concentration increases.
E) the transport rate does not change with ion concentration.