Active Transport and Facilitated Diffusion

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  • Created by: CG01
  • Created on: 15-05-13 09:51

Active Transport and Facilitated Diffusion

Similarities

  • both serve to transport molecules across cell membranes
  • Both make use of proteins embedded in the phospholipid bilayer in order to move these molecules

Differences

  • Active Transport goes against a concentration gradient i.e. from a region of low concentration to a region of high concentration
  • Active Transport requires energy from ATP
  • Facilitated diffusion is a passive process and travels along a concentration gradient

Overall comparison

Active Transport: Transport of molecules against the concentration gradient with the use of a protein carrier. This uses ATP.
Facilitated Diffusion: moving of molecules through a semi-permeable membrane with the use of the cells 'facilities' i.e. Protein carriers or channels

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