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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 |