The Movement of Potassium into an Animal Cell Requires

Question

The movement of potassium into an animal cell requires
A) low cellular concentrations of sodium.
B) high cellular concentrations of potassium.
C) an energy source such as ATP.
D) a cotransport protein.
E) a potassium channel protein.

Accepted Answer

The movement of potassium into an animal cell requires an energy source such as ATP. This is because potassium ions move against their concentration gradient, from an area of low concentration to high concentration. This movement requires energy, which is provided by ATP hydrolysis.