Question

Prokaryotic flagella possess

• A. Helically arranged protein molecule.
• B. Protein membrane enclosed fibre.
• C. Unit membrane enclosed fibre.
• D. Microtubular 9+2 membrane enclosed structure.

Answer 1

The correct option is A Helically arranged protein molecule.

Prokaryotic (bacterial) flagella is 3 to 12 $\mu$m long, 0.01 to 0.02 $\mu$m thick hollow unistranded and made of 3 to 8 spiral or helically arranged rows of protein, flagellin.