| 1. | Centrosomes |
| 2. | Ribosomes |
| 3. | Lysosomes |
| 4. | Mitochondria |
| A. | The endomembrane system includes Golgi complex, endoplasmic reticulum and mitochondria. |
| B. | Rough endoplasmic reticulum bears ribosomes on its surface. |
| C. | Both mitochondria and plastids have circular DNA. |
| D. | A network of microtubules, microfilaments and intermediate filaments present in the cytoplasm is called cytoskeleton. |
| E. | Mitochondrion is a single membrane-bound structure. |