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11 Cards in this Set

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  • Back
passive transport
movement accross cell membrane that doesnt require energy
concentration gradient
difference in the concentration of a substance across a space
equilibrium
condition in which the concentration of a substance is equal throughout a space
diffusion
movement of substance from high to low concentration
osmosis
diffusion of water through cell membrane
hypertonic solution
causes a cell to shrink becuz of osmosis
hypotonic solution
causes a cell to swell becuz of osmosis
isotonic solution
no change in cell volume cuz of osmosis
ion channel
doughnut shaped transport protein with polar pore through wich ions can pass
carrier protein
carries a substance accross cell membrane
facilitated diffusion
moves substances down their concentration gradient without using cells energy