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Micro, Antimicro 45
Micro 204, antimicrobial suseptibility testing
Question | Answer |
---|---|
A single antibiotic is usually toxic to both prokaryotes and eukaryotes. T or F | False |
An antibiotic is usually effective in ____ quantities | Small |
Standard strains of bacteria are used as _____ in the Kirby-Bauer Method. | Controls |
If the zone size with the standard strain varies it often means the test was performed ______ than it should have been. | Incorrectly |
The name of the standard disk test for antibiotic sensitivity is the _____ disk test. | Kirby- Bauer |
Name 4 factors that may affect the diameter of the inhibitory zone on any particular test. | 1.Volume of the medium in dish 2. Medium composition 3. Amount of inoculate 4. Solubility of the test agent |
The name of the medium used in the Kirby - Bauer test is ___________ agar. | Mueller Hinton |
Name 3 microbial genera responsible for producing most of the antibiotics. | 1. Bacillus 2. Streptomycin 3. Penicillium |
Explain why Saccharomyces cerevisiae was not affected by these antibiotics. | It is a yeast and does not respond to any antibiotics due to its eukaryotic properties |
Medium used | Mueller-Hinton agar |