| A | B |
|---|
| osmosis | diffusion of water across a semipermeable membrane |
| diffusion | The movement of molecules from an area of greater concentration to one of a lesser concentration |
| Circulation | Movement of materials within a cell or parts of an organ |
| Absorption | The passage of materials across a cell membrane into a cell |
| Transport | The process by which substances pass in and out of cells and circulate within the cell |
| Active Transport | Requires energy to transport materials |
| Plasmolysis | Loss of water from cells due to osmosis |
| Passive Transport | A type of transport in which materials maove across the cell membrane without using energy |
| cell membrane | lipids and proteins |
| closed system | blood is always contained in the vessels |
