Cilia and flagella exhibit the characteristic '9 + 2' arrangement of:

Question

Accepted Answer

B. Microtubules (tubulin protein, hollow cylindrical)

**Cilia + flagella:** 9 OUTER PAIRS of microtubules + 2 CENTRAL microtubules ('9+2').
**Centrioles:** 9 triplets, no central pair ('9+0'). All made of tubulin.
Both used in motility + signalling.

Answer

Microfilaments (actin protein, thinnest)

Answer

Intermediate filaments (keratin family)

Answer

Centriole triplets (9 + 0 arrangement)

Cilia and flagella exhibit the characteristic '9 + 2' arrangement of:

Keep practising Cell: The Unit of Life