Biology for IGCSE & O level - Movement Into And Out Of Cells (Section 4 - No. 25)
What is the main difference between facilitated diffusion and active transport?
Facilitated diffusion moves molecules against a concentration gradient, while active transport moves molecules down a concentration gradient.
Facilitated diffusion requires ATP, while active transport does not.
Facilitated diffusion does not require a membrane protein, while active transport requires a membrane protein.
Facilitated diffusion moves molecules down a concentration gradient, while active transport moves molecules against a concentration gradient.
Explanation
Facilitated diffusion moves molecules down a concentration gradient and does not require energy; active transport moves molecules against the gradient and requires energy.
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