| A | B |
|---|
| diffusion | The movement of moleucles from an area of higher concentration to an area of lower concentration. |
| osmosis | The diffusion of water through a membrane. |
| solute | A substance that is dissolved into another substance, ex. sugar in a 20% sugar solution. |
| solvent | A substance into which another substance has been dissolved, ex. water in a 20% sugar solution. |
| hypertonic | A solution that has more solute than a second solution to which it is compared. |
| hypotonic | A solution that has less solute than a second solution to which it is compared. |
| isotonic | A solution that has the same amount of solute as a second solution to which it is compared. |
| turgidity | The condition of a plant cell that has taken in water. The membrane is pressed tightly against the cell wall. |
| plasmolysis | The condition of a plant cell that has lost water. The cell membrane is pulled away from the cell wall. |
| crenation | The condition of an animal cell that has lost water. The cell looked wrinkled. |
| hemolysis | The condition of a red blood cell (an animal cell) that has taken on water and burst open. |
| active transport | The movement of molecules through a cell membrane against the concentraiton gradient. ATP energy is required. |
| passive transport | The movement of molecules through a cell membrane with the concentration gradient. ATP energy is not required. |
