Select the wrong statement.
- Bacterial cell wall is made up of peptidoglycan
- Pili and fimbriae are mainly involved in motility of bacterial cells
- Cyanobacteria lack flagellated cells
- Mycoplasma is a wall - less microorganism
Solution
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.
Asked in: NEET 2016 (Phase 2)