Question

Which one of the following statements is about cilia is true?

• A. They possess a 9 + 0 configuration of microtubules
• B. They do not contain an axoneme
• C. They contain ciliary dynein arms
• D. They play a major function in absorption

Answer 1

The correct option is C They contain ciliary dynein arms

Cilia possess a 9+2 configuration of microtubules.

Cilia contain an axoneme with ciliary dynein arms extending uni-directionally from one member of each doublet.

Ciliary dynein has ATPase activity, and when it splits ATP, the adjacent doublets slide past one another and the cilium moves.

Cilia does not function in absorption. It functions in allowing motility.