Question

In eukaryotic flagella, membrane bound central part is termed as?

• A. Shaft
• B. Central sheath
• C. Axonema
• D. Spoke

Answer 1

The correct option is C Axonema

Inside cilia and flagella is a microtubule-based cytoskeleton called the axoneme. The axoneme of primary cilia typically has a ring of nine outer microtubule doublets (called a 9+0 axoneme), and the axoneme of a motile cilium has two central microtubules in addition to the nine outer doublets (called a 9+2 axoneme). The axonemal cytoskeleton acts as a scaffolding for various protein complexes and provides binding sites for molecular motor proteins such as kinesin II, that help carry proteins up and down the microtubules.

So the correct option is 'Axoneme'.