- 1(current)
Q. No.Both cilium and flagellum emerge from centriole-like structure called the:
| 1. | Centrosome | 2. | Centromere |
| 3. | Blepharoplast | 4. | Basal body |
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Prokaryotic and eukaryotic flagella differ in
1. Type of movement and placement
2. Location and mode of functioning
3. Microtubular structure and function
4. Microtubular organisation and type of movement
Which of the following statement about cilia is not correct?
1. Organised beating of cilia is controlled by fluxes of Ca2+ across the membrane.
2. Cilia are hair like cellular appendages.
3. Cilia contain an outer ring of nine doublet microtubules surrounding two singlet microtubules.
4. Microtubules of cilia are composed of tubulin.
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Match the following and select the correct answer :
| (a) | Centriole | (i) | Infoldings in mitochondria |
| (b) | Chlorophyll | (ii) | Thylakoids |
| (c) | Cristae | (iii) | Nucleic acids |
| (d) | Ribozymes | (iv) | Basal body cilia or flagella |
| A | B | C | D | |
| 1. | (iv) | (ii) | (i) | (iii) |
| 2. | (i) | (ii) | (iv) | (iii) |
| 3. | (i) | (iii) | (ii) | (iv) |
| 4. | (iv) | (iii) | (i) | (ii) |
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In the ultrastructure of cilia/ flagella, the radial spokes connect one of the tubules of each peripheral doublet to:
1. the bridge of the central microtubules
2. another tubule to the doublet
3. the central sheath
4. dynein arms
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| 1. | Arrangement of axonemal microtubules in cilia and flagella is described as 9 + 2 |
| 2. | Arrangement of microtubules in centriole is described as 9 + 0 |
| 3. | Centrosome is involved in spindle formation in plant cell division |
| 4. | Centrioles form the basal body of cilia and flagella |
- 1(current)
Q. No.
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