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Smoores Smoores
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11 years ago
Compare and contrast the processes of facilitated diffusion and active transport
leave sources if possible, thanks.
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#1
11 years ago
They are alike because they both involve a concentration gradient.  They are different because facilitated diffusion is a passive process, moves down a concentration gradient, requires no energy, and does not involve a carrier molecule within a membrane..
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#2
11 years ago
Diffusion is the movement of a substance from an area of high concentration to an area of low concentration.

Facilitated diffusion is the movement of a substance using a transport molecule from high concentration to low concentration.

Active transport is movement of a substance up a concentration gradient through a selectively permeable membrane using ATP to drive the process.

Diffusion and facilitated diffusion move substances down a concentration gradient and does not require the use of ATP.
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