What is the difference between diffusion and facilitated diffusion?

Question

What is the difference between diffusion and facilitated diffusion?, Facilitated diffusion requires energy while diffusion doesn't, Facilitated diffusion is faster than diffusion, Facilitated diffusion uses a carrier protein to transport molecules across a membrane, Facilitated diffusion only occurs in certain conditions

MARKS App · Accepted Answer

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration, while facilitated diffusion is the passive transport of molecules across a membrane with the help of carrier proteins. Both diffusion and facilitated diffusion do not require energy and occur down the concentration gradient.

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