Biology for IGCSE & O level - Movement Into And Out Of Cells (Section 1 - No. 35)
Which of the following is a main advantage of facilitated diffusion compared to simple diffusion?
Facilitated diffusion moves substances against a concentration gradient.
Facilitated diffusion is faster for moving larger molecules.
Facilitated diffusion does not require the cell membrane to be selectively permeable.
Facilitated diffusion requires less energy.
Explanation
Facilitated diffusion is faster for specific molecules since the protein facilitates movement.
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