| A | B |
|---|
| Simple diffusion | Method used to transfer oxygen from air sacs in the lungs to red blood cells |
| Osmosis | Process that moves water into the plant cell |
| Phagocytosis | Used by one celled organisms to engulf food particles |
| Facilitated diffusion | Passive transport that requires special transport proteins |
| Active transport | Any type of transport that requires energy (ATP) |
| Sodium potassium pump | Moves sodium from low concentration to high concentration; requires ATP |
| Exocytosis | Vesicle fuses with cell membrane and empties contents outside the cell. |
| Passive transport | Any type of transport that moves substances from a high concentration to low concentration. No energy is requried. |
| Hypotonic solution | Solution that has a higher concentration of water than the cell |
| Hypertonic solution | Solution that has a lower concentration of water than the cell |
