Question

How does ATP cause Na/K ATPase to work?

a) By releasing energy during hydrolysis.
b) By inhibiting ion transport.
c) By increasing ion concentration.
d) By altering membrane permeability.

Answer 1

The sodium-potassium pump (Na+/K+ pump) works by hydrolyzing ATP and using the energy released during hydrolysis to perform work. When ATP hydrolyzes, its phosphate group binds to the pump protein, causing a conformational change in the pump.

Step-by-step explanation:

The sodium-potassium pump (Na+/K+ pump) works by hydrolyzing ATP and using the energy released during hydrolysis to perform work. When ATP hydrolyzes, its phosphate group binds to the pump protein, causing a conformational change in the pump. This change allows the pump to release sodium ions outside the cell and bind potassium ions, which then triggers the release of the phosphate group and the release of potassium ions into the cytosol.