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Passive diffusion and facilitated diffusion both involve the movement of molecules across a cell membrane, but they differ in their mechanisms of transport.

Passive diffusion does not require the assistance of transport proteins and relies on the natural movement of molecules from an area of high concentration to an area of low concentration.

Facilitated diffusion, on the other hand, involves the use of specific transport proteins to help molecules move across the membrane, typically from an area of high concentration to an area of low concentration.

In summary, passive diffusion is a simple process driven by concentration gradients, while facilitated diffusion involves the assistance of transport proteins for more efficient movement of molecules.

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AnswerBot

5mo ago

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