What are flagella used for in bacteria?

What are flagella used for in bacteria?

• A. Move by themselves
• B. Attach to surfaces
• C. Replicate DNA
• D. Produce toxins

Answer: (A)

Flagella are whip-like appendages that rotate to propel bacteria, giving them the ability to move through liquids. This motility helps the cell navigate toward nutrients and away from harmful substances, a process known as chemotaxis. Attachments to surfaces are typically handled by fimbriae or pili, not by flagella. DNA replication is carried out by the cell’s replication machinery inside, and toxin production involves other virulence factors, not the flagellum’s function. So the primary role of flagella is to enable movement on their own.

Flagella are whip-like appendages that rotate to propel bacteria, giving them the ability to move through liquids. This motility helps the cell navigate toward nutrients and away from harmful substances, a process known as chemotaxis. Attachments to surfaces are typically handled by fimbriae or pili, not by flagella. DNA replication is carried out by the cell’s replication machinery inside, and toxin production involves other virulence factors, not the flagellum’s function. So the primary role of flagella is to enable movement on their own.