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_____ _____ is the movement of materials across the plasma membrane using channel proteins.

A: Diffusion B: Facilitated Diffusion C: Osmosis D:Active Transport

User Pepa
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1 Answer

4 votes

Answer:

diffusion

Materials move within the cell 's cytosol by diffusion, and certain materials move through the plasma membrane by diffusion. Diffusion expends no energy. On the contrary, concentration gradients are a form of potential energy, dissipated as the gradient is eliminated.

User RoxanneM
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