| A | B |
| Cell membrane | maintains homeostasis by controlling what comes in and out of the cell |
| Cell wall | provides support and protection for some cells (bacteria, plants, fungi) |
| Cellulose | Carbohydrate found in the cell wall of plants |
| Mitochondria | Site of respiration in the cell, makes energy (ATP) and carbon dioxide |
| Chloroplast | Site of photosynthesis in the cell, makes sugar and oxygen |
| Lysosome | Digests wastes of the cell |
| Nucleus | Contains DNA, controls all of the cell's activities |
| Ribosome | Site of protein synthesis in the cell |
| Endoplasmic reticulum | Transport within the cell |
| Golgi apparatus | Packaging within the cell |
| Vacuole | Storage of food and water in the cell |