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Increasing the Rate of Movement across a Membrane

AQA AS-level BiologyTransport Across Cell MembranesLesson 19 of 22

The rate of movement across a cell membrane by diffusion can be increased by increasing the surface area of the membrane, increasing the concentration gradient across the membrane and decreasing the diffusion distance.

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Key terms in this lesson

diffusion
The net passive movement of molecules or ions from a region of higher concentration to a region of lower concentration, down a concentration gradient.

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