The difference between simple diffusion and facilitated diffusion is that facilitated diffusion
A) moves materials from a lower to a higher concentration.
B) requires transporter proteins.
C) requires ATP.
D) does not require ATP.
E) moves materials from a higher to a lower concentration.

Question

Quizplus · Accepted Answer

Facilitated diffusion requires transporter proteins to transport specific molecules across the membrane, while simple diffusion does not require any transporter protein. Therefore, facilitated diffusion is facilitated by the membrane proteins, which serve as channels or carriers for the molecule, whereas simple diffusion occurs through the lipid bilayer.

The Difference Between Simple Diffusion and Facilitated Diffusion Is That