How is the energy stored in a molecule of ATP used by the sodium-potassium pump?
A)It is used to transport potassium ions out of the cell.
B)It is used to transport sodium ions into the cell.
C)It is used to alter the conformation of the pump protein.
D)All of these choices are correct.

Question

Quizplus · Accepted Answer

The energy stored in a molecule of ATP is used to alter the conformation of the pump protein. This change in conformation allows the pump to move sodium ions out of the cell and potassium ions into the cell. Therefore, options A and B are incorrect as they describe the movement of only one type of ion. Option D is incorrect as it includes options that are not necessarily correct.

How Is the Energy Stored in a Molecule of ATP