Biology for IGCSE & O level - Movement Into And Out Of Cells (Section 3 - No. 38)
Which of the following is a key difference between diffusion and facilitated diffusion?
Facilitated diffusion requires energy, while diffusion does not.
Diffusion requires carrier proteins, while facilitated diffusion does not.
Facilitated diffusion requires carrier proteins, while diffusion does not.
Diffusion can move molecules against a concentration gradient, while facilitated diffusion cannot.
Explanation
Facilitated diffusion uses protein channels or carrier proteins to assist the movement of molecules across the membrane.
Comments (0)
