The prokaryotic flagella possess
(a) unit membrane enclosed fibre
(b) protein membrane enclosed fibre
(c) '9+ 2' membrane enclosed structure
(d) helically arranged protein molecule
Correct option (d) helically arranged protein molecule
Explanation:
Prokaryotic (bacterial) flagellum is made up of flagellin protein arranged helically. It do not show 9+2 organisation and ATPase activity. These flagella do not *** but rotate like a propellar that brings about backward pushing of water. Gram +ve bacteria having two rings in the basal body. Gram -ve bacteria have four rings. The L, P, M and rings.
