Bacteria US Medical PG Flashcards - Medical Study Cards
Master Bacteria 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.
Bacteria Flashcard Deck - 10 Cards
Flashcard 381: Staphylococcus saprophyticus is nitrate reductase _____
Answer: negative
Extra:
Watch Staph epidermidis & saprophyticus [https://dashboard.sketchy.com/study/medical/courses/medical-microbiology/units/medical-microbiology-bacteria/videos/medical-microbiology-bacteria-gram-positive-cocci-staphylococcus-epidermidis-and-saprophyticus?utm_source=anki&utm_medium=partnership&utm_campaign=february_update&utm_content=medical]
https://onlinemeded.org/spa/infectious-disease?ref=anki
Flashcard 382: Boiling temperatures (100* C) are unable to kill _____-forming bacteria
Answer: spore
Extra:
https://onlinemeded.org?ref=anki
Flashcard 383: In **conjugate vaccines**, a polysaccharide is conjugated to a(n) _____ to elicit a stronger immune response (e.g. immunologic memory)
Answer: protein
Extra: Polysaccharide antigens alone are T-cell independent and do not produce memory. Conjugation to a protein carrier allows the antigen to be presented on MHC II to T-helper cells, leading to class switching and immunologic memory.
Examples: Hib, Meningococcal, and Pneumococcal (PCV13) vaccines.
Watch associated Bootcamp video: https://app.bootcamp.com/med-school/immunology/videos/vaccinations?index=10
Reference: https://onlinemeded.org/spa/pediatrics/vaccinations/acquire?ref=anki
Flashcard 384: Sialadenitis most commonly occurs due to _____, which often leads to Staphylococcus aureus mediated sialadenitis / parotitis
Answer: sialolithiasis
Extra:
https://onlinemeded.org?ref=anki
Atlas:
Flashcard 385: Which bacteria (2) present with WBCs in urine but NO bacteria (sterile pyuria)?
_____
Answer: N. gonorrhoeae, Chlamydia trachomatis
Extra:
https://onlinemeded.org?ref=anki
Flashcard 386: Does E. coli have a capsule?
_____
Answer: Yes
Extra:
Watch Escherichia coli (ETEC, EHEC) [https://dashboard.sketchy.com/study/medical/courses/medical-microbiology/units/medical-microbiology-bacteria/videos/medical-microbiology-bacteria-gram-negative-bacilli-enteric-tract-escherichia-coli-etec-ehec?utm_source=anki&utm_medium=partnership&utm_campaign=february_update&utm_content=medical]
https://onlinemeded.org/spa/infectious-disease?ref=anki
Flashcard 387: What phase of bacterial growth do antibiotics (e.g., penicillin) have their greatest effect?
_____
Answer: Log phase
Extra: Antibiotics (especially cell wall inhibitors like beta-lactams) are most effective during the log (exponential) phase, when bacteria are actively dividing and synthesizing new cell walls.
Flashcard 388: Bacteria with irregular, fuzz layer have a(n) _____
Answer: glycocalyx
Extra: Watch associated Bootcamp video [https://app.bootcamp.com/med-school/microbiology/videos/fundamentals-of-bacteriology?index=2]
https://onlinemeded.org/spa/infectious-disease?ref=anki
Flashcard 389: Nocardia stains _____ due to the mycolic acids found in its cell wall
Answer: weakly acid fast
Extra:
https://onlinemeded.org/spa/infectious-disease?ref=anki
Flashcard 390: Does Klebsiella have a capsule?
_____
Answer: Yes
Extra:
Watch Klebsiella pneumoniae, Enterobacter spp., Serratia marcescens [https://dashboard.sketchy.com/study/medical/courses/medical-microbiology/units/medical-microbiology-bacteria/videos/medical-microbiology-bacteria-gram-negative-bacilli-enteric-tract-klebsiella-pneumoniae-enterobacter-spp-serratia-marcescens?utm_source=anki&utm_medium=partnership&utm_campaign=february_update&utm_content=medical]
https://onlinemeded.org/spa/infectious-disease?ref=anki
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