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When materials diffuse across a membrane, they move from an area of high concentration toan area of low concentration along the concentration gradient.

When materials diffuse across a membrane, they move from an area of high concentration to an area of low concentration along the concentration gradient.

Diffusion is the movement of substances across the cell membrane. By diffusion, the molecules passively move from an area of high concentration to an area of low concentration.

  • If this occurs through the cell membrane or semi-permeable membrane it is called osmosis.
  • it is a type of passive diffusion
  • it moves from high concentration to low concentration.

Thus, When materials diffuse across a membrane, they move from an area of high concentration to an area of low concentration along the concentration gradient.

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