Cell membrane

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Cell membrane

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7 Terms

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passive transport

The movement of a substance through a cell membrane without using the cell energy

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Diffusion

The movement of a substance from an are of higher concentration to an are of lower concentration.

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Facilitate diffusion

When molecules pass through a cell membrane using special proteins called transport proteins.

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osmosis

Te diffusion of water molecules only through a membrane.

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active transport

The movement of water through a cell membrane only by using cell energy.

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Endocytosis

A cell takes in a substance by surrounding it with cell membrane

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Exocytosis

a cells vasicles release their contents outside the cell.