Which of the following statements concerning membrane proteins is incorrect?

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    They often require ATP to actively transport materials across the membrane against a concentration gradient.
    They are usually not particular about what types of chemicals they will allow to cross the membrane.
    They can act as a channel, allowing the transport of ions across the membrane.
    They may be receptor proteins that bind specific molecules from the surrounding solution, which triggers endocytosis (i.e., receptor-mediated endocytosis).
    They often facilitate diffusion of molecules across the membrane that otherwise would diffuse too slowly to be of use to the cell.
asked May 30, 2013 in Biology by anonymous
    

1 Answer

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They are usually not particular about what types of chemicals they will allow to cross the membrane.
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

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