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Unit 4

Unit 4 Cellular Transport

TermDefinition
selectively permeable cell membrane only lets certain things in or out
diffusion the movement of something from where there is more to less
osmosis the diffusion of WATER across a membrane
active transport movement from LOW to HIGH; requires energy
passive transport diffusion and osmosis do not require energy
cell membrane things move across this to go into or out of a cell
homeostasis the balanced state living things require to survive
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