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    Can anyone explain this? Text books don't seem to help it stick, it's a difficult concept :mad:
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    Oh right, well, Active Transport requires ATP to move whatever it is you want across the membrane againsts the concentration gradient
    Facilitated/Assisted Transport uses channel proteins that have a complementary binding site to tthe ion or whatever thingymajiggy you want to transport and doesnt use ATP and acts down a conentration gradient
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    (Original post by Jez_249)
    Oh right, well, Active Transport requires ATP to move whatever it is you want across the membrane againsts the concentration gradient
    Facilitated/Assisted Transport uses channel proteins that have a complementary binding site to tthe ion or whatever thingymajiggy you want to transport and doesnt use ATP and acts down a conentration gradient
    Facilitated diffusion involves two different types of channel proteins: carrier proteins (bind to a specific molecule on one side of the membrane, and then change shape to release that molecule on the other side); and ions channels (these are opened and closed to regulate the flow of ions)

    Active transport also uses channel proteins.

    Other than that it seems you have it down...
 
 
 
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