Which three structures comprise a bacterial flagellum?

• A. Basal body, capsule, and ribosome
• B. Hook, pilus, and ribosome
• C. Filament, hook, and basal body
• D. Filament, pilus, and capsule

Answer: (C)

Verified step by step guidance

1. Understand that a bacterial flagellum is a complex structure used for motility in bacteria, allowing them to move towards favorable environments.
2. Identify the three main components of a bacterial flagellum: the filament, the hook, and the basal body.
3. The filament is the long, whip-like structure that extends from the cell surface and is responsible for the actual movement.
4. The hook is a curved structure that connects the filament to the basal body, allowing for the transmission of rotational force.
5. The basal body anchors the flagellum to the bacterial cell wall and membrane, acting as a motor that rotates the filament.