Micro 204, antimicrobial suseptibility testing
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each of the black spaces below before clicking
on it to display the answer.
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| A single antibiotic is usually toxic to both prokaryotes and eukaryotes. T or F | False
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| An antibiotic is usually effective in ____ quantities | Small
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| Standard strains of bacteria are used as _____ in the Kirby-Bauer Method. | Controls
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| If the zone size with the standard strain varies it often means the test was performed ______ than it should have been. | Incorrectly
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| The name of the standard disk test for antibiotic sensitivity is the _____ disk test. | Kirby- Bauer
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| 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
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| The name of the medium used in the Kirby - Bauer test is ___________ agar. | Mueller Hinton
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| Name 3 microbial genera responsible for producing most of the antibiotics. | 1. Bacillus
2. Streptomycin
3. Penicillium
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| 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
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| Medium used | Mueller-Hinton agar
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