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Match each of the Following tests with their color results. Options may be used more than once or not at all. After the appropriate reagent is added, a positive phenylalanine result appears as Sugar fermentation is positive if the broth appears as After the appropriate reagent is added. a positive Cytochrome C oxidase will appear as The Schaeffer-Fulton endospore stain preformed in lab will stain endospores In the presence of oxygen, the indicator resazurin will appear as [Choose ] a green color a purple color a yellow color a pink color [ChooseT [Choose] [Choose ] [Choose ]
Dichotomous Key Can they use citric acid as their sole carbon source? No Yes Shigella produces lysine decarboxylase Come Can they ferment lactose? No Salmonella: generally produces H₂S Yes Can they use citric acid as their sole carbon source? Yes No Escherichia Do they produce acetoin? No Yos Citrobacter Enterobacter Figure 10 Consider the Dichotomous Tree above. What Identification would you provide for an organism with the following traits using the table above: Acetoin production: Positive Citrate as sole carbon source: Negative Lactose Fermentation: Negative
2010 Enterobacter Citrobacter Enterobacter Consider the Dichotomous Tree above. What Identification would you provide for an organism with the following traits using the table above: Acetoin production: Positive Citrate as sole carbon source: Negative Lactose Fermentation: Negative Shigella O Escherichia Citrobacter Shigella Figure 10.8