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The cell membrane controls movement of materials into and out of the cell. The following particles are moving from high concentration to low concentration and are using a carrier protein. How would you describe this type of movement across the membrane?

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lilblackbear
The cell membrane is semipermeable, meaning that only certain molecules and substances can pass through the cell membrane.;

Hope this helps :))
squareruth04

The movement of particles from high concentration to low concentration gradient that uses a carrier protein is called Facilitated diffusion. In facilitated diffusion, the protein channels or carrier protein in the cell membranes allows the particles to move in or move out of the cell from high concentration down to their low concentration gradient. 

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