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Chapter 1
cell structure and function
Question | Answer |
---|---|
Diffusion | the main method by which small molecules move across the cell membrane |
osmosis | is the diffusion of water molecules through a selectively permeable membrane. |
Selectively permeable | some substances can pass through the membrane while others cannot |
passive transport | the movement of dissolved materials through a cell membrane without cellular energy |
active transport | the movement of materials through a cell membrane using energy |