How many components of bacterial flagella have?
3
The correct answer is 3.
Key Points
Bacterial flagella:-
- Bacterial flagella are complex organelles that play a crucial role in bacterial motility.
- They are composed of three main components:
- Basal body:
- The basal body is a complex molecular machine that serves as the rotary motor responsible for flagellar rotation.
- It is embedded in the bacterial cell envelope and consists of four ring structures (MS, S, C, and P rings) and the rod, which extends into the cell cytoplasm.
- Hook:
- The hook is a flexible, curved structure that connects the basal body to the filament.
- It allows for changes in the flagellum's direction of rotation, enabling the bacterium to maneuver effectively.
- Filament:
- The filament is a long, helical structure that extends from the hook and serves as the propeller that propels the bacterium through its liquid environment.
- It is composed of thousands of copies of a single protein subunit called flagellin.
- Basal body:
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