verifiedlolo verifiedlolo

06-02-2017
Biology

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_________ are responsible for the transport of substances down a concentration gradient during facilitated diffusion.

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matthewspeaks matthewspeaks

06-02-2017

Carrie proteins.................... sorry you have to have a minimum of 20 characters;)

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cupcakecoolcat13 cupcakecoolcat13

26-04-2019

Answer: carrier proteins

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