Role of microtubules is:
| 1. | To help in cell division |
| 2. | Cell membrane formation |
| 3. | Respiration |
| 4. | Pinocytosis |
Microtubules are absent in:
1. Mitochondria
2. Flagella
3. Spindle fibers
4. Centriole
The mitotic spindle is mainly composed of which protein:
1. Actin
2. Tubulin
3. Actomyosin
4. Myoglobin
Flagella of prokaryotic and eukaryotic cells differ in:
| 1. | Location in cell and mode of functioning |
| 2. | Microtubular organization and type of movement |
| 3. | Microtubular organization and function |
| 4. | Type of movement & placement in the cell |