The centriole is a non-membraneous, self-replicating organelle present near the nucleus in all the animal cells. It is generally present in pairs and is surrounded by a distinct cytoplasm, which together forms centrosome. It is hollow cylinder filled with matrix. Basal bodies have the same structure as that of centriole but they can occur in eukaryotic cells which bear cilia and flagella and are without cenosphere. They can be changed to centriole when it is required. The basal plate is a plate-like band present between basal body and shaft of cilia/flagella. So take this quiz and increase your knowledge about centriole, basal bodies, and basal plate.
1. Who discovered centriole?
A. Miiler
B. Morgan
C. Edouard Van Beneden
D. Robert Hook
2. In which year Edouard Van Beneden discovered centriole?
A. 1881
B. 1882
C. 1883
D. 1884
3. The walls of the centriole are made up of ____ microtubule triplets arranged in a ring.
A. 7
B. 4
C. 9
D. !0
4. Each centriole is surrounded by dense sphere called ......
A. Crown
B. Massule
C. Percentriolar satellite
D. All of the above
5. Centrioles have a high amount of _______ enzyme.
A. ATPase
B. Maltase
C. Amylase
D. Lipases
6. Which of the following helps in the formation of spindle fibers and astral rays?
A. Basal Plate
B. Basal Bodies
C. Centriole
D. All of the above
7. Which one form basal bodies which give rise to cilia and flagella?
A. Centriole
B. Basal Bodies
C. Basal Plate
D. None of the above
8. Distal centriole of _______ give rise to axial filaments.
A. Sperm
B. Blood
C. Ovum
D. All of these
9. When the basal body of human sperm flagellum enters into the egg, it turns into ........
A. Basal plate
B. Centriole
C. Blood
D. Sweat
10. Inside the microtubules _________ structure is formed.
A. Cart wheel
B. Circle
C. Triangle
D. Rectangle
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