| A | B |
| Osmosis | the movement of water across a semi-permeable membrane |
| Hypotonic | a solution with a high concentration of water (low solute) |
| Passive | moves from high to low concentration with no energy needed |
| Active | energy needed to move from low to high concentration |
| Facilitated diffusion | the movement of a substance through a protein channel |
| Turgid | a cell that is swollen due to a high internal pressure |
| Concentration gradient | The difference in concentration between two areas |
| Exocytosis | the transport of the contents of a vesicle out of a cell |
| Endocytosis | when a bacteria is engulfed by a white blood cell |
| Isotonic | having the same concentration of water/solute |
| Protein pump | embedded in the membrane and needs energy to move substances |
| Large SA:vol | a feature of a small cell which ensure efficient transport |