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Science Chapter 1
Cell Structure and Function
| Question | Answer |
|---|---|
| selectively permeable | some substances can pass through but others can't |
| diffusion | the process by which molecules move from one area of higher concentration to an area of lower concentration |
| osmosis | is 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 dissolved materials through a cell membrane using the cells energy |