Bacteria — Flashcards

Flashcard 731: Exotoxin generates a _____ (strength) antibody response

Answer: strong

Flashcard 732: What is the shape of Legionella?_____

Answer: Rod

Flashcard 733: How do phagocytes in CGD patients kill catalase-negative organisms? _____

Answer: Use H2O2 produced by invading organisms to produce HClO-

Flashcard 734: Which bacteria's spores are commonly found in honey?_____

Answer: Clostridium botulinum

Flashcard 735: _____ of High Frequency bacterial strains allows us to perform genetic mapping

Answer: Conjugation

Flashcard 736: Staphylococcus aureus is catalase _____

Answer: positive

Flashcard 737: IgA protease is a virulence factor used by Neisseria that allows bacteria to colonize and adhere to _____.

Answer: mucous membranes

Flashcard 738: Which toxin of Bordetella pertussis inhibits DNA synthesis in ciliated epithelial cells?_____

Answer: Tracheal toxin

Flashcard 739: Which bacterial genetics phenomenon involves the uptake of naked DNA from the environment?

Answer: Transformation

Extra: Transformation is a mechanism of horizontal gene transfer where bacteria take up "naked" DNA from their environment. It was famously demonstrated by Griffith's experiment with Streptococcus pneumoniae. This is distinct from conjugation (cell-to-cell contact) and transduction (viral-mediated).

Flashcard 740: What is the etiology of Lyme Disease?_____

Answer: Borrelia burgdorferi