| 1. | Larger nucleoli are present in dividing cells. |
| 2. | It is a membrane-bound structure. |
| 3. | It takes part in spindle formation. |
| 4. | It is a site for active ribosomal RNA synthesis. |
| 1. | Polysome | 2. | Polyhedral bodies |
| 3. | Plastidome | 4. | Nucleosome |
| Column I | Column II | |
| 1. | Lampbrush | Diplotene bivalents chromosomes |
| 2. | Allosomes | Sex chromosomes |
| 3. | Submetacentric | L-shaped chromosomes |
| 4. | Polytene | Oocytes of amphibians chromosomes |
Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?
1. BacillusWhich of the following components provides sticky character to the bacterial cell?
| 1. | Nuclear membrane | 2. | Plasma membrane |
| 3. | Glycocalyx | 4. | Cell Wall |
Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?
1. Ribosome
2. Chloroplast
3. Mitochondrion
4. Lysosome
Select the mismatch.
| 1. | Gas vacuoles — Green bacteria Cells |
| 2. | Large central vacuoles — Animal cells |
| 3. | Protists — Eukaryotes |
| 4. | Methanogens — Prokaryotes |
A cell organelle containing hydrolytic enzyme is
1. lysosome
2. microsome
3. ribosome
4. mesosome