Facilitated diffusion and active transport
A) both transport molecules into or out of a cell.
B) are both not very specific as to which molecules are transported.
C) both require a concentration gradient to function.
D) both require use of energy in order to transport the molecules.
E) both require a concentration gradient to function AND both require use of energy in order to transport the molecules.

Question

Quizplus · Accepted Answer

Facilitated diffusion and active transport both involve the movement of molecules across a cell membrane, but they differ in their mechanisms and energy requirements. Facilitated diffusion does not require energy and moves substances down their concentration gradient through specific carrier proteins, while active transport requires energy (usually in the form of ATP) to move substances against their concentration gradient.

Facilitated Diffusion and Active Transport