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chapter 1
cell structures and functions
Question | Answer |
---|---|
selectively permeable | some supstances can pass through and others cannot |
diffusion | the main method by which small molecules move across the cell membrane |
osmosis | the diffusion of water molecules through a selectively permiable membrane |
passive transport | the movement of dissolved materials through a cell membrane without using cellular energy |
active transport | the movement of materials through the cell membrane using cellular energy |