| A | B |
|---|
| Simple diffusion | The net movement of molecules or ions from an area of higher concentration to an area of lower concentration until an equilibrium is reached. |
| Facilitated diffusion | Certain molecules move through the membrane with the help of a transporter. |
| Osmosis | the movement of water through a selectively permeable membrane from an area of higher water concentration to an area of lower water concentration. |
| Filtration | The movement of water and dissolved substances across a membrane due to gravity or hydrostatic pressure. |
| Active transport | the movement of a substance across a cell membrane from lower to higher concentration using energy derived from ATP |
| Receptor-mediated endocytosis | The selective uptake of large molecules and particles that bind to specific receptors in membrane areas. |
| Phagocytosis | The ingestion of solid particles. |
| Pinocytosis | The ingestion of extracellular fluid. |
| Exocytosis | Movement of secretory or waste products out of a cell. |
