How many components of bacterial flagella have?

Correct option is D

The correct answer is (d) 3.

Bacterial flagella, the structures responsible for motility in many bacterial species, typically consist of three main components:

1. Basal Body: Anchors the flagellum to the cell membrane and acts as the motor, rotating the flagellum for movement.
2. Hook: A curved segment that connects the basal body to the filament, allowing for flexible movement.
3. Filament: The long, helical tail that extends into the external environment, which is propelled by the rotation of the basal body and hook.

These three components work together to provide motility to bacteria, allowing them to move towards nutrients or away from harmful substances in their environment.

Information Booster:

• Functionality: The basal body works as a rotary engine powered by proton motive force, enabling the flagellum to spin and propel the bacteria.
• Variability: Some bacteria may have multiple flagella, enhancing their motility and ability to adapt to environmental changes.
• Biological Importance: Flagellar movement is critical for bacterial survival, aiding in processes like chemotaxis (movement in response to chemical stimuli).