Question

Bacterial flagellum
Is made up of tubulin protein
Provides motility to the bacterium
Is always single in number per cell
Is sometimes involved in mating
process​

Answer 1

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A flagellum (/fləˈdʒɛləm/; plural: flagella) is a lash-like appendage that protrudes from the cell body of certain cells termed as flagellates. A flagellate can have one or several flagella. The primary function of a flagellum is that of locomotion, but it also often functions as a sensory organelle, being sensitive to chemicals and temperatures outside the cell