| A | B |
| Transport | Absorbtion and circulation within a organism |
| Absorbtion | The passing of materials across a cell membrane |
| Circulation | The movement of materials within a cell |
| Diffusion | The movement of particles from high concentration to low concentration |
| Passive Transport | Movement across a cell without using energy |
| Active Transport | Requires energy to move across a cell membrane |
| Concentraion Gradient | The difference in concentration from a area of high concentraion to low concentration |
| Cell Membrane | Made up of protiens and lipids |
| Osmosis | The diffusion of water |
| Intracellular circulation | Circulation withint he cell |