What is the difference between active transport and passive transport?

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    Active transport requires energy and is unable to move substances against their concentration gradient. Passive transport does not require energy and can move substances against their concentration gradient.
    Passive transport involves the movement of substances directly through the lipid portion of a membrane. Active transport requires an input of energy, whereas passive transport does not.
    Active transport requires energy and can move substances against their concentration gradient. Passive transport does not require energy and can move substances only down their concentration gradient.

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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Active transport requires energy and can move substances against their concentration gradient. Passive transport does not require energy and can move substances only down their concentration gradient.
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

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