Biology Lab #4

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Author:
orte645
ID:
200065
Filename:
Biology Lab #4
Updated:
2013-02-12 15:59:28
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Lab
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Biology Lab
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  1. What is Brownian Movement
    Movement of the molecules is random; they bump into one another and bounce off in a different direction.
  2. Diffusion
    Random movement of molecules from areas of high to areas of low concentration.
  3. Osmosis
    Is a special case of diffusion.  It occurs when there are two solutions of different concentrations on opposite sides of a semi-permeable membrane.
  4. Solvent Water
    Can cross the membranes freely
  5. Solute
    Cannot cross the membranes freely
  6. Tonicity
    Describes one solution's solute concentration compared to that of another.
  7. Hyprotonic
    The solution on one side of the membrane contains a greater concentration of a solute compared to the other side of the membrane.
  8. Isotonic
    Equal amounts of the solute are found on each side of the membrane.
  9. Hypotonic
    The solution on one side of the membrane contains a lower concentration of a solute compared to the other side

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