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  • Created by: Fia1998
  • Created on: 27-01-14 17:36

Dissolved substances can move into and out of cells by diffusion.

Diffusion is the spreading of the particles of a gas, or of any substance in solution, resulting in a net movement from a region where they are of a higher concentration to a region with a lower concentration. The greater the difference in concentration, the faster the rate of


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