• Use the resource below to answer the following questions.
  • Diffusion is the movement of a substance from an area of a higher amount toward a lower amount.
  • The diffusion of water across a membrane because of a difference in concentration is called osmosis.
  • If a cell is placed in a hypotonic solution, water will move into the cell.
  • This causes the cell to swell, and it may even burst.
  • Marine animals live in salt water, which is a hypertonic environment.
  • Red blood cells can be kept from bursting or shriveling if put in a solution that is isotonic to the blood cells.
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