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Chapter 1
cell stuff
Question | Answer |
---|---|
selectively permeable | some substances can pass through others can't |
diffusion | when molecules move from an area of high concentration to an area of low concentration. |
osmosis | the diffusion of water molecules through a selectively permeable membrane. |
passive transport | the movement of dissolved materials through a cell membrane without using cellular energy |
active transport | the movement of materials through a cell membrane using cellular energy. |