backup4116 backup4116
  • 03-10-2017
  • Biology
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The process by which molecules such as oxygen are moved into cells along their concentration gradient directly through the cell membrane is called

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puppydrs puppydrs
  • 04-10-2017
molecules move down their concentration gradient through the lipid bilayer with no assistance from transport proteins by means of simple diffusion, a form of passive transport. 
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