Facilitated diffusion

Facilitated diffusion - The proteins encourage movement in...

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Facilitated diffusion A third mechanism for movement across the plasma membrane is  facilitated diffusion.   Certain   proteins   in   the   membrane   assist   facilitated   diffusion   by  permitting only certain molecules to pass across the membrane. 
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Unformatted text preview: The proteins encourage movement in the direction that diffusion would normally take place, from a region with a higher concentration of molecules to a region of lower concentration....
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