| Term | Definition |
|---|
| Hypotonic | A solution with more water outside the cell. (More solutes inside the cell) |
| Hypertonic | More water inside the cell. (More solutes outside the cell) |
| Isotonic | A solution having the same amount of water and solutes inside and outside the cell. |
| Cytolysis | The bursting of an animal cell, when in a hypotonic soultion |
| Plasmolysis | When a plant cell is in a hypertonic solution, the cell will lose water , causing the membrane and cytoplasm to shrink inside the cell wall |
| Wilting | When a plant cell is put into an isotonic solution it looses some of its internal water pressure |
| Diffusion | the process by which molecules move from an area in which they are highly concentrated to an area in which they are less concentrated |
| Osmosis | diffusion of water |
| Equilibrium | equal distribution of molecules in a solution. no net diffusion |
| Facilitated diffusion | movement of specific molecules across cell membranes through protein channels |
| Active transport | the movement of materials through a membrane using energy |
| Passive transport | transport of a substance across a cell membrane by diffusion, down the concentration gradient. No energy required. |
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