Exploring Bacterial Flagella

What are bacterial flagella primarily made of?

• Flagellin

• Tubulin

• Actin

• Collagen

Name the two main types of bacterial flagella.

• Monotrichous and Peritrichous

• Ciliated and Spore-forming

• Flagellated and Non-flagellated

• Lophotrichous and Amphitrichous

L and P ring absent in _____________ bacteria

• Gram negative bacteria

• Gram Positive bacteria

• Both a and b

• Fastidious vascular bacteria

What is the role of the basal body in flagellar movement?

• The basal body generates energy for the cell.

• The basal body is responsible for nutrient absorption.

• The basal body acts as a sensory organ for the cell.

• The basal body anchors the flagellum and facilitates its rotation for movement.

Describe the mechanism of flagellar rotation in bacteria.

• The rotation of flagella is controlled by the bacterial cell wall structure.

• Flagellar rotation is driven by ATP hydrolysis in bacteria.

• Bacterial flagella rotate due to the action of myosin motors.

• Bacterial flagellar rotation is powered by proton motive force, causing the flagellum to rotate via the FliG protein.

What energy source powers the movement of bacterial flagella?

• Nucleotide triphosphate energy

• Proton motive force

• ATP hydrolysis

• Cyclic AMP signaling

How does the movement of bacterial flagella differ from eukaryotic flagella?

• Both bacterial and eukaryotic flagella rotate in a circular motion.

• Bacterial flagella rotate like a propeller; eukaryotic flagella whip back and forth.

• Bacterial flagella move in a wave-like motion; eukaryotic flagella rotate.

• Bacterial flagella are longer and thicker than eukaryotic flagella.

What is chemotaxis in relation to bacterial movement?

• Chemotaxis is the process by which bacteria absorb nutrients from their environment.

• Chemotaxis refers to the ability of bacteria to reproduce rapidly.

• Chemotaxis is the directed movement of bacteria toward or away from chemical stimuli.

• Chemotaxis is the random movement of bacteria in response to light.

Explain the significance of the hook structure in flagella.

• The hook structure is primarily responsible for nutrient absorption.

• The hook structure is significant as it provides flexibility and connects the basal body to the filament, enabling effective rotation and propulsion.

• The hook structure serves as a protective casing for the flagella.

• The hook structure is involved in DNA replication during cell division.

The bacterium swims in straight line and suddenly stops and changes its direction into counter-clockwise is called _____________

• Run

• Chemotoxis

• tumbling

• swim