An elaborate network of filamentous proteinaceous structures present in the cytoplasm which helps in the maintenance of cell shape is called -
1. Endosplasmic Reticulum
2. Plasmalemma
3. Cytoskeleton
4. Thylakoid
| 1. | Mesosomes help in DNA replication and distribution to daughter cells. |
| 2. | Gram staining is based on the difference in the composition of cell wall of different bacteria. |
| 3. | The axonemal microtubular arrangement in prokaryotes is characterized as 9 + 2. |
| 4. | Plasmids are extrachromosomal circular double stranded DNA molecules. |