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Passive Transport

movement of molecules from a high concentration to low concentration with out the use of energy.

diffusion

movement of molecules from a high concentration to a low concentration though a membrane.

osmosis

the diffusion of water.

equilibrium

molecules of substances will continue to move from one area to another until a number of molecules is equal in the two areas

Active transport

movement of molecules from a low to high concentration with the use of energy.

endocytosis

the process of a cell taking in a substance by surrounding it with the cell membrane.

exocytosis

the process of a cell releasing waste.

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