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Chapter 1

cell stuff

QuestionAnswer
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.
Created by: jmcCalmon
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