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9 Cards in this Set
- Front
- Back
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What is the purpose of the hydrogen sulfide test?
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To determine if a bacteria produced hydrogen sulfide from amino acids that contain organic sulfur or from inorganic sulfur
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Which test results were observed to check for H2S and motility?
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Indole test
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Which 2 products are fermented for bacteria (if able to do so) to create hydrogen sulfide (H2S)?
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Cystein (amino acid) & Thiosulfate (inorganic sulfur compound)
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What enzyme is used to breakdown the amino acid cystein?
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Cysteine desulfurase
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What enzyme is used to breakdown the sulfur compound thiosulfate?
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Reductase
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What is used in the media to indicate hydrogen sulfide (H2S)?
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Ferrous sulfate
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What color is produced when hydrogen sulfide (H2S) is evident in the media?
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Black
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Which bacteria showed the production of hydrogen sulfide (H2S)?
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P. vulgaris, P. aeruginosa
"the H-2-(P)'S" |
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Which bacteria showed motility?
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All gram (-) bacteria: E-E-P-P-A (1st 5)
E. coli, E. aerogenes, P. vulgaris, P. aeruginosa, A. faecalis |
