The rate at which molecules are actively transported across a membrane is determined by the rate of transport of individual pumps and the number of pumps in the membrane.

Question

Quizplus · Accepted Answer

Active transport involves the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, against the concentration gradient, and requires energy. The rate of active transport is determined by the activity of individual transport proteins (or pumps) and the total number of these proteins present in the membrane.

The Rate at Which Molecules Are Actively Transported Across a Membrane