Beta-lactamase types and mechanisms US Medical PG Flashcards - Medical Study Cards
Master Beta-lactamase types and mechanisms with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Beta-lactamase types and mechanisms Flashcard Deck - 10 Cards
Flashcard 1: Beta-lactamase enzymes are found in the periplasm of gram _____ bacteria
Answer: negative
Flashcard 2: Enterococcus spp. can become resistant to ampicillin due to _____ production
Answer: beta-lactamase
Flashcard 3: Beta-lactamases are expressed by _____ genes
Answer: plasmid
Flashcard 4: What glial cell type serves as the CNS phagocyte?
Answer: microglia
mnemonic: Microglia (e.g. Macrophages) develop from Mesoderm
Flashcard 5: Microglia derive from what embryologial predecessor?
Answer: mesoderm
mnemonic: Microglia (e.g. Macrophages) develop from Mesoderm
Flashcard 6: Where do the genes for bacterial exotoxins reside?
Answer: plasmids or transferred by bacteriophages
Flashcard 7: What bacteria are particularly adept at transformation of environmental DNA?
Answer: S. pneumoniae, H. influenzae B, Neisseria
mnemonic: SHiN
Flashcard 8: Give four processes by which bacteria may gain/lose/recombine DNA.
Answer: transformation, transposition, transduction, conjugation
Flashcard 9: transformation (bacterial genetics)
Answer: process of taking up naked DNA from the environment
Flashcard 10: transposition (bacterial genetics)
Answer: process by which DNA segment can excise and reintegrate in another part of the bacterial chromosome or plasmid
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