Transport across membranes

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Diffusion

  • Net Movement from Higher concentration to Lower concentration
  • Passive Process
  • Rate of Diffusion depends on; Concentration gradient (higher the faster rate), Thickness of exchange surface, Surface area, Temperature, Molecule Size

Osmosis

  • New Movement of water moleclues over a partially permeamble membrane from a Higher concentration to an area of Lower concentration
  • When equillbrium is reached no further…

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