Bacteria — Flashcards

Flashcard 581: The Quellung Reaction is used to test for bacteria who have a _____

Answer: capsule

Flashcard 582: Does Vibrio cholerae invade the intestinal wall?_____

Answer: No

Flashcard 583: The process of inactivation of self-propagating biological entities is known as _____

Answer: Sterilization

Flashcard 584: Which species of *Streptococcus viridans* is a common cause of subacute bacterial endocarditis?

Answer: Streptococcus mitis (and Streptococcus sanguinis)

Flashcard 585: 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 586: All Clostridium spp. are _____-forming

Answer: spore

Flashcard 587: Enterococci spp. are _____ anaerobes

Answer: facultative

Flashcard 588: What is the urease expression of Nocardia spp?_____

Answer: Positive

Flashcard 589: Listeria monocytogenes is _____-hemolytic

Answer: beta

Flashcard 590: Actinomyces is commonly transmitted in the setting of _____ procedures

Answer: dental