Type IV Pili in Bacteria Quiz

Type IV pili are found in bacteria such as Pseudomonas aeruginosa and Neisseria gonorrhoeae.

Type IV pili bind to glycolipids on epithelial cell surfaces.

Surface proteins that bind to specific receptor molecules on host cells.

Microbial surface components recognizing adhesive matrix molecules.

The mechanism involved in the binding of MSCRAMMs to their ligands.

Type IV pili in Pseudomonas and Neisseria are involved in biofilm formation.

Adhesion is critical for bacterial pathogens because it helps them evade immune defenses and adhere to different cell types.

Pili (fimbriae) purpose in host cell adherence is to depolymerize and make intimate contact with host cells

Adhesins in biofilm formation serve as a trigger for synthesizing additional cell wall adhesins.

Formation of multicellular communities makes biofilms more resistant to antibiotics and immune defenses compared to planktonic bacteria.

Bacteria constantly lose and reform pili to evade immune defenses by switching adhesive tips.

The shaft end of pili attaches to specific receptors on host cells.

FimH adhesin in UPEC recognizes mannose on mannosylated proteins of the bladder epithelium.

The fim operon encodes type 1 pili and expresses hemagglutinin.

PapG represents the actual adhesin.

Type IV pili enable twitching motility along a solid surface.

Mutants that lack type 1 pili or FimH adhesin in UPEC are quickly cleared from the bladder.

The PapK subunit connects above subunits to the PapA pilus rod.