| 1. | microtubules | 2. | nucleolus |
| 3. | grana | 4. | smooth ER |
| 1. | Transportation | 2. | Nuclear division |
| 3. | Protein synthesis | 4. | Motility |
| 1. | are ribonucleoproteins. |
| 2. | are part of cytoskeleton in both eukaryotic and prokaryotic cells. |
| 3. | are involved in many functions such as mechanical support, motility, maintenance of the shape of the eukaryotic cell. |
| 4. | are always deposited on cell surface and are never found in the cytoplasm. |