Passive Transport

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Passive Transport

  1. 1. Passive Transport
  2. 2. Passive Transport <ul><li>Requires No Energy! </li></ul>NO ENERGY!!!
  3. 3. Diffusion <ul><li>Happens in all systems </li></ul><ul><li>Systems eventually reach equilibrium </li></ul><ul><li>Downhill </li></ul><ul><li>Substances move from areas of high concentration to areas of low concentration </li></ul>
  4. 4. Facilitated Diffusion <ul><li>“ Helped” diffusion </li></ul><ul><li>Works using the same principles as diffusion </li></ul><ul><li>Usually uses protein channels </li></ul>
  5. 5. Osmosis <ul><li>Diffusion of water through a membrane </li></ul><ul><li>Membrane is usually semi-permeable </li></ul><ul><ul><li>Water can move </li></ul></ul><ul><ul><li>Solutes cannot move </li></ul></ul><ul><li>Water is moving from an area where it is highly concentrate to where it is at a low concentration </li></ul>
  6. 6. Osmosis <ul><li>Hypertonic- more solute than the surroundings </li></ul><ul><li>Hypotonic- less solute than the surroundings </li></ul><ul><li>Isotonic- equal solvent throughout the system </li></ul>

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