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Bio ch 4 set two
2nd set, 6 terms
Term | Definition |
---|---|
concentration | a measurement of the amount of dissolved substance in a fixed amount of solvent |
concentration gradient | a difference in the concentration of a substance across a distance |
diffusion | the movement of molecules from a high area of concentration to an area of low concentration |
equilibrium | a state where concentrations are equal to the solute concentration of another solution |
homeostasis | the ability of an organisms to maintain their internal conditions |
hypertonic | a solution whose solute concentration is higher than the solute concentration of another solution |
hypotonic | a solution whose solute concentration is lower than the solute concentration of another solution |
osmosis | the movement of water through a cell membrane |
selectively permeable membrane | a membrane that allows some molecules to pass but blocks other molecules from coming through |
solute | a dissolved substance |
transport | to move molecules from one side of a membrane to the other |