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chapter 1
cell structure and function
| Question | Answer |
|---|---|
| selectively permeable | some substances can pass through the membrane while others can't |
| diffusion | the process where molecules move from an area of higher concentration to an area of lower concentration |
| osmosis | the diffusion of water particles 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 |