- Created by: bircm025.209
- Created on: 08-06-15 19:57
- Dissolved substances move in and out of cells through diffusion
- Diffusion is the spreading of particles through a gas, or of any substance in solution, resulting in the net movement where they are a higher concentration to a region where there is lower concentration.
- The greater the difference in concentration, the higher the rate of diffusion
- Oxygen required for respiration passes through cell membranes by diffusion
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