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| 3197194437 | Head | Hydrophilic end of phospholipid |  | 0 |
| 3197194438 | Tails | Hydrophobic end of phospholipid |  | 1 |
| 3197194441 | Passive transport | Diffusion of molecules across a cell membrane | 2 | |
| 3197194442 | Diffusion | The tendency of molecules to spread out evenly in available space | 3 | |
| 3197194443 | Osmosis | Diffusion of water across a cell membrane | 4 | |
| 3197194444 | Facilitated Diffusion | Diffusion of molecules down the concentration gradient with the help of a transport protein | 5 | |
| 3197194445 | Concentration gradient | Movement of molecules from high concentration to low concentration | 6 | |
| 3197194447 | Isotonic | Solute concentration outside the cell is the same as solute concentration inside of the cell |  | 7 |
| 3197194448 | Hypertonic | Solute concentration outside the cell is greater that solute concentration inside of the cell; Cell loses water |  | 8 |
| 3197194449 | Hypotonic | Solute concentration outside the cell is less than solute concentration inside of the cell; Cell gains water |  | 9 |
| 3197194450 | Plasmolysis | In a hypertonic solution around a plant cell the cell membrane pulls away from the cell wall |  | 10 |
| 3197194452 | Active transport | Movement of molecules across the cell membrane that requires energy; Molecules go against the concentration gradient from low to high | 11 | |
| 3197194453 | Sodium-Potassium pump | Example of active transport to transmit nerve signals in the body |  | 12 |
| 3197194454 | Exocytosis | Occurs when a cell exports bulky materials out of the cell |  | 13 |
| 3197194455 | Endocytosis | Occurs when a cell takes in large molecules by forming vesicles |  | 14 |
| 3197194456 | Phagocytosis | Cell membrane changes shape and surrounds the particle and engulfs it. |  | 15 |
| 3197194457 | Pinocytosis | The membrane bends inward allowing the particle to 'dissolve' through the membrane |  | 16 |
