What is a major difference between facilitated diffusion and active transport?

Question 3 options:

Active transport moves substances against the concentration gradient.

Active transport uses proteins in the process.

Facilitated diffusion moves molecules through the plasma membrane.

Facilitated diffusion requires large amounts of energy.

Active transport moves substances against the concentration gradient

Explanation:

Facilitated diffusion moves their substances down their concentration gradient while active transport moves substances against the concentration gradient. Facilitated diffusion is a passive process and does not require cellular energy. Active transport uses carrier proteins. Energy is used to change the shape of the carrier protein. Facilitated diffusion uses both gated channel proteins and carrier proteins in transport.