Bacteria — Flashcards

Flashcard 581: Which complement proteins are part of the membrane attack complex (MAC)?_____

Answer: C5b-C9

Flashcard 582: Enterococci spp. are _____ anaerobes

Answer: facultative

Flashcard 583: _____ culture media have special nutrients added so that many bugs will grow

Answer: Enriched

Flashcard 584: In which phase of bacterial growth do antibiotics have their greatest effect?

Answer: Log phase (Exponential phase)

Extra: Antibiotics, especially cell wall synthesis inhibitors (e.g., beta-lactams), are most effective during the log phase because this is when bacteria are actively dividing and synthesizing new cell wall components.

Flashcard 585: Which species of *Streptococcus viridans* is a common cause of subacute bacterial endocarditis?

Answer: Streptococcus mitis (and Streptococcus sanguinis)

Flashcard 586: The process of inactivation of self-propagating biological entities is known as _____

Answer: Sterilization

Flashcard 587: Does Vibrio cholerae invade the intestinal wall?_____

Answer: No

Flashcard 588: Which toxin of Listeria monocytogenes lyses vacuolar membranes within host cells?_____

Answer: Listeriolysin O

Flashcard 589: The Quellung Reaction is used to test for bacteria who have a _____

Answer: capsule

Flashcard 590: Which bacteria is associated with military combat wounds and motorcycle accidents?_____

Answer: Clostridium perfringens