Question

Bacteria show a range in the number of arrangement of flagella. Bacterial flagellum is composed of

Answer 1

Structure of bacterial flagella
Flagella are single stranded structures helping the bacteria in locomotion. Bacterial flagella is divided into three parts -

1. Basal body - it is present in the cell envelope and bear rings.
2. Hook - curved portion that connects filament to basal body.
3. Filament - filament is the motile part of flagella. It is made up of flagellin protein.

Final answer
$\left(D\right)$ Three parts-filament, hook and basal body