| A | B |
|---|
| homeostasis | the ability of organisms to maintain their internal conditions |
| transport | to move molecules from one side of a membrane to the other |
| concentration | a measurement of the amount of dissolved substance in a fixed amount of solvent |
| diffusion | the movement of molecules from an area of high concentgration to an area of low concentration |
| selectively permeable membrane | a membrane that allows some molecules to pass but block other molecules from coming through |
| concentration gradient | a difference in the concentration of a substance across a distance |
| osmosis | the movement of water through a cell membrane |
| hypotonic | a solution whose solute concentration is lower than the solute concentration of another solution |
| hypertonic | a solution whose solute concentration is higher than the solute concentration of another solution |
| isotonic | a solution whose solute concentration is equal to the solute concentration of another solution |
| equilibrium | a state where concentrations are equal in all parts of an area |
