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10 Cards in this Set
- Front
- Back
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Osmosis |
Movement of H2O across a semipermeable membrane H2O flows from solution with lower [solute] to higher |
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Factors that can affect Osmosis |
1. Molarity of solutes |
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Osmolarity -> moles/L |
# of dissolved particles in a volume of fluid or solution |
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Osmoles |
Concentration of solute in terms of # of particles |
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Osmotic Pressure |
Pressure when water diffuses across CM Pressure required in stopping osmosis completely |
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Tonicity |
Osmolality of a solution relative to plasma ( 0.3 osm/L or 300 mosm/L) |
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3 types of solution |
Isotonic - equal concentration Hypertonic - higher solute concentration Hypotonic - lower solute concentration |
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RBC in 0.9% NaCl |
Isotonic = no change in cells |
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RBC in H2O |
Hypotonic = swelling in cells |
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RBC in 10% NaCl |
Hypertonic - shrinking of cells |
