verifiedlolo verifiedlolo
  • 06-02-2017
  • Biology
contestada

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

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matthewspeaks
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

Explanation:

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