Here's a breakdown:
* Flagella are long, whip-like appendages that extend from the bacterial cell surface.
* They are composed of three main parts:
* Filament: The outermost, helical structure made of flagellin protein.
* Hook: A curved structure that connects the filament to the basal body.
* Basal body: A complex structure embedded in the cell wall and membrane, responsible for rotation and anchoring.
How it works:
* The basal body acts as a motor, using energy from a proton gradient to rotate the filament.
* This rotation propels the bacterium through its surroundings.
Types of flagellar arrangements:
* Monotrichous: Single flagellum at one end.
* Lophotrichous: Cluster of flagella at one end.
* Amphitrichous: Single flagellum at each end.
* Peritrichous: Flagella distributed over the entire surface.
Let me know if you'd like more details on any of these aspects!
