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Unit 4
Unit 4 Cellular Transport
Term | Definition |
---|---|
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 |