| Term | Definition |
|---|
| Diffusion | the random movement of molecules from an area of higher concentration of those molecules to an area of lower concentration |
| Osmosis | a special case of diffusion where water diffuses through a selectively permeable membrane from a region of higher water potential to a region of lower water potential |
| Permeable Membrane | a membrane that allows for diffusion of certain solutes and water |
| Active Transport | uses energy from ATP to move substances throguh the cell membrane against a concentration gradient, from regions of low to higher concentrations |
| Isotonic | when two solutions have the same concentrations of solutes |
| Hypertonic | a solution with more solute |
| Hypotonic | solution with less solute |
| Water Potential | measure of free energy of water in a solution |
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