Dissolved substances

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  • Dissolved substances
    • Dissolved substances can move into and out of cells by diffusion
    • Diffusion is the spreading of particles in a gas, or of any substance in a solution, resulting in a net movement from a region where they are a higher concentration to a region of low concentration
      • The greater difference in concentration, the faster the rate of diffusion
    • Oxygen is required for respiration passes through cell membranes by diffusion


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