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MLT - Micro ASCP

Microbilogy

QuestionAnswer
Haemophilus influenzae becomes resistant to ampillin when the organism produces: Beta-lactamase
Thioglycollate broth is stored at room teperature and in the dark so that: ther is a decreased absorption of oxygen by the medium
Ureaplasma urealyticum are difficult to grow in the laboratory on routine media because of their requirement for: sterols
An antibiotic that inhibits cell wall syntheisi is: Penicillin
A gram-negative diplococcus that grows on modified Thayer-Martin medium can be further confirmed as Neisseria gonorrhoeae if it is: Oxidase positive / Glucose positive / Maltose negative
Organims that may be mistaken for Neisseri gonorrhoeae in Gram stained smears of uterine cervix exudates include: Moraxella oslensis
Clinical resistance to penicillin dosages appears to correlate with beta-lactamse production in: Neisseria gonorrhoeae
Organism considered universally susceptible to penicillin: Streptococcus pyogenes
First-generation cephalosporins can be adequately represented by: cephalothin
Media routinely used to culture Campylobacter jejuni: Skirrow's medium
The recovery of some Cryptococcus species may be compromised if the isolation media contains: cycloheximide
Organisms appropriate to Control test for Indole: E.coli and P.mirabillis
Organism for positive quality control test for lecithinase on egg yolk agar: Clostidium perfringens
Characteristics best differentiates Acinetobacter species from Moraxella species: Production of cytochrome oxidase
The smallest concentration of antimicrobial agent which prevents growth in subculture or results ina 99.9% decrease of the initial inoculum, is the definition of: minimum bactericidal concentration
Created by: moarah