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Biological Solutions Notes
Objective: You will be able to explain the differences between hypotonic, hypertonic and isotonic solutions and describe their effects on cells. Itinerary: Powerpoint (definitions) Potato experiment demonstration Celery demonstration
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a. Greater concentration of solute inside cell than outside Hypotonic solution water water Inside cell
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Red blood cell Water leaves solution and goes into the cell. Cell will get bigger and can burst! Hypotonic solution Plant cell
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a. Greater concentration of solute outside of cell than inside Hypertonic solution water water Inside cell
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b. Water leaves cell and goes into solution. Cell will shrivel up. Red blood cell Hypertonic solution c. Can lead to dehydration Plant cell
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Concentration inside cells is equal to that of the solution Cell is at equilibrium Isotonic solution
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Which is which? Label each one as: hypotonic, hypertonic or isotonic
1. 2. 3.
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Which is which? Label each one as: hypotonic, hypertonic or isotonic
2. 1. 3.
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What happens to cells in this environment?
Type of solution Definition What happens to cells in this environment? Hypotonic Hypertonic Isotonic Greater concentration of solute inside cell than outside Water goes into the cell. Cell will get bigger and can burst! Greater concentration of solute outside of cell than inside Water leaves the cell. Cell will get shrivel up and dehydrate Concentration inside cells is equal to that of the solution Cell is at equilibrium
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