Hyper/Hypo/Isotonic Solutions

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Hyper/Hypo/Isotonic Solutions
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Isotonic

• Isotonic cellular environments occur when the
  concentration outside of the cell and the
  concentration in the cytoplasm (inside) of the
  cell is the same.
• While water will move in and out, there is no NET
  movement of molecules.

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Hypertonic

• Hypertonic environments are created when the
  solution outside of the cell has more dissolved
  solute than inside of the cell.
• This causes water to move OUT of the cell.

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Hypotonic

• A hypotonic environment for a cell is created
  when the solution outside of the cell has LESS
  dissolved solute than the cytoplasm of the cell.
• This causes water to move INTO the cell.

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Normal Cells in Isotonic Solution Cells in Hypertonic Solution Cells in Hypotonic Solution
                                                                                         
                                                                                                                                                   
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• Hypertonic environments shrink animal cells.
• Isotonic environments cause no net change.
• Hypotonic environments swell animal cells.

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Animation!

• http//www.coolschool.ca/lor/BI12/unit4/U04L06/rbc
  .html