| Functions | Organelle |
| Contains the DNA | |
| Controls what passes in and out of the cell | |
| Site of aerobic respiration | |
| Receives vesicles from rest of cell. These are then secreted, sometimes after modification | |
| Site of translation from messenger RNA to protein | |
| Breakdown substances | |
| Transport system in cytoplasm; collects, stores, packages and transports proteins made by the ribosomes | |
| Synthesis of lipids and some steroids. Also, detoxification | |