Diffusion is the spreading of 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
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The greater the difference in concentration...
..., the faster the rate of diffusion
2 of 5
Give an example of diffusion in the body
Oxygen into cells for repsiration
3 of 5
Name four factors that affect diffusion
surface area, distance for diffusion, concentration gradient, temperature
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