Question

Which statement correctly describes the function of pumps in the plasma membrane?
A. Pumps hold the plasma membrane together.
B. Pumps store water in the plasma membrane for later use by the cell.
C. Pumps glue the plasma membrane of adjacent cells together.
D. Pumps move substances through the plasma membrane.

Answer 1

The correct statement that describes the function of pumps in the plasma membrane is:

D. Pumps move substances through the plasma membrane.

Pumps are integral membrane proteins that actively transport substances across the plasma membrane, usually against their concentration gradient, using energy from ATP.