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Biology 19 Online
OpenStudy (anonymous):

The main difference(s) between facilitated diffusion and active transport is (are) A. facilitated diffusion moves substances down their concentration gradient and active transport moves them against their gradient. B. facilitated diffusion does not rely on cellular energy and active transport does. C. facilitated diffusion uses channel or carrier proteins and active transport does not. D. A and B only E. A, B, and C

OpenStudy (gerald):

the answer is E,A,Band c

OpenStudy (anonymous):

yes ans will be A,B and C

OpenStudy (blues):

Active transport definitely requires carrier proteins. These molecules have to be moved against their concentration gradient - how will that be done if not by a protein in the membrane? This carrier protein takes the energy stored in an energy storage molecule (usually ATP) and uses that energy to push the thing it is trying to transport against its concentration gradient.

OpenStudy (anonymous):

The answer is D as active transport uses carrier proteins

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