Q. No.Which of the following is the structural and functional unit of bacterial flagella
(1)axon
(2)axoneme
(3)flagellin
(4)All of the above
Which of the following is true about axoneme except
| 1. | It has nine doublets of peripheral microtubules |
| 2. | 2 centrally located microtubule |
| 3. | nine radial spokes |
| 4. | central sheath is absent |
Cilium and flagellum emerge from centriole-like structure called as
1. basal body
2. shaft
3. basal plate
4. All of these
Which of the following is true about centrosome
| 1. | membraneless organelle |
| 2. | contains two centrioles |
| 3. | surrounded by amorphous pericentriolar |
| 4. | All of these |
The arrangement of peripheral microtubule in centrioles is
(1)9 as triplets
(2)9 as doublets
(3)9 as singlet
(4)Both A and B
Which of the following is true about centrioles?
| 1. | It lacks microtubule in the centre |
| 2. | Hub is proteinaceous |
| 3. | It forms the body of cilia or flagella and spindle fibres |
| 4. | All of the above |
Which of the following is true
| 1. | Centriole is well developed in animals |
| 2. | Centrioles lie perpendicular to each other in centrosome |
| 3. | 9+0 arrangement of microtubules is present in centrioles |
| 4. | All of the above |
Which of the following is true for vacuole
(1)It is present in both plants and animals
(2)Central vacuole is present in plant
(3)It occupies 90% volume of the plants
(4)All of these
In plant cell the concentration of ions is more in
1. cytoplasm
2. vacuoles
3. equal in both
4. nucleus
The contractile vacuole
| 1. | is present in Amoeba | 2. | helps in osmoregulation |
| 3. | helps in excretion | 4. | All of the above |
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