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Questions and Answers
Which agar contains bromthymol blue as a pH indicator?
Which test distinguishes late lactose fermenters from non-lactose fermenters?
Which test detects acid production through mixed acid fermentation pathway?
Which agar is used to isolate Yersinia?
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Which agar is used to differentiate between lactose fermenters and non-lactose fermenters?
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Which agar is used to detect Salmonella Typhi colonies?
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Which agar is used to detect H2S production?
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Which agar contains sodium deoxycholate, Cef, Irg, Nov, CV, mannitol, and neutral red indicator?
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Which agar is used to differentiate between lactose fermenters and non-lactose fermenters?
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Which agar contains bismuth sulfite & brilliant green?
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Which test detects β-galactosidase activity and distinguishes late lactose fermenters from non-lactose fermenters?
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Which test detects the ability to reduce nitrate to nitrite or other compounds?
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Which test detects acid production through the mixed acid fermentation pathway?
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Which test detects acetoin or acetylmethyl carbinol and 2,3-butanediol through the butylene glycol pathway?
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Which test detects cytochrome oxidase activity?
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Which test is used to detect growth of flagellated organisms away from the line of inoculation?
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Which agar contains bromthymol blue as a pH indicator?
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Which agar contains bromthymol blue as a pH indicator?
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Which test detects cytochrome oxidase activity?
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Which agar contains bismuth sulfite & brilliant green?
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Which agar is used to isolate Yersinia?
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Which test detects the ability to reduce nitrate to nitrite or other compounds?
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Which test detects β-galactosidase activity and distinguishes late lactose fermenters from non-lactose fermenters?
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Which test detects acid production through the mixed acid fermentation pathway?
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Which agar is used to detect E. coli O157:H7?
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Which agar is used to detect Salmonella Typhi colonies?
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Study Notes
Microbiology Agars and Tests
- MacConkey agar contains bromthymol blue as a pH indicator.
- The ONPG (o-nitrophenyl-β-galactosidase) test distinguishes late lactose fermenters from non-lactose fermenters.
- Mixed acid fermentation pathway is detected through the Methyl Red test.
- CIN (Cefsulodin-Irgasan-Novobiocin) agar is used to isolate Yersinia.
- MacConkey agar is used to differentiate between lactose fermenters and non-lactose fermenters.
- Bismuth Sulfite agar is used to detect Salmonella Typhi colonies.
- Triple Sugar Iron (TSI) agar is used to detect H2S production.
- XLD (Xylose-Lysine-Deoxycholate) agar contains sodium deoxycholate, Cef, Irg, Nov, CV, mannitol, and neutral red indicator.
- MacConkey agar is used to differentiate between lactose fermenters and non-lactose fermenters.
- Bismuth Sulfite agar contains bismuth sulfite and brilliant green.
- The ONPG test detects β-galactosidase activity and distinguishes late lactose fermenters from non-lactose fermenters.
- The Nitrate test detects the ability to reduce nitrate to nitrite or other compounds.
- The Methyl Red test detects acid production through the mixed acid fermentation pathway.
- The Voges-Proskauer test detects acetoin or acetylmethyl carbinol and 2,3-butanediol through the butylene glycol pathway.
- The Oxidase test detects cytochrome oxidase activity.
- The Motility test is used to detect growth of flagellated organisms away from the line of inoculation.
- MacConkey agar contains bromthymol blue as a pH indicator.
- The Oxidase test detects cytochrome oxidase activity.
- Bismuth Sulfite agar contains bismuth sulfite and brilliant green.
- CIN agar is used to isolate Yersinia.
- The Nitrate test detects the ability to reduce nitrate to nitrite or other compounds.
- The ONPG test detects β-galactosidase activity and distinguishes late lactose fermenters from non-lactose fermenters.
- The Methyl Red test detects acid production through the mixed acid fermentation pathway.
- Sorbitol-MacConkey agar is used to detect E. coli O157:H7.
- Bismuth Sulfite agar is used to detect Salmonella Typhi colonies.
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Description
Test your knowledge of microbiology by identifying different inhibitory agents and indicators used in bacterial culture media. Learn about the characteristics of lactose fermenters and non-lactose fermenters as well as the distinguishing colors of Eosin Methylene Blue Agar (EMB), MacConkey Agar (MAC), and Salmonella Shigella Agar (SSA).
