Question

Select the wrong statement.

• A. Bacterial cell wall is made up of peptidoglycan
• B. Pili and fimbriae are mainly involved in motility of bacterial cells
• C. Cyanobacteria lack flagellated cells
• D. Mycoplasma is a wall - less microorganism

Answer 1

Answer: (B)

Pili and fimbriae are surface structures of bacteria that do not play a role in motility. Pili and fimbriae are elongated, hollow appendages seen in Gram-negative bacteria made of a unique protein, pilin. They serve in the attachment of bacteria with substratum and not in movement.