Question

Centrioles and centrosomes are present in cells of
(a) bacteria (b) cyanobacteria
(c) green plants (d) animals

Answer 1

Centrioles and centrosomes occur in the cells of animals.

Explanation:

• Centrosomes contains centrioles in them.
• The main microtubule-organizing center in an animal cell that regulates the process of the cell cycle is known as centrosome.
• Two centrioles make up one centrosome, both centrioles are right-angled to one another and are made up of a protein known as tubulin.
• In animal cells and cells of few lower plants, centrioles are present in cilia and flagella.
• So, the correct answer is 'Animals'.

Answer 2

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• ☛Centrioles and centrosomes are present in cells of animals.