Biochemical Tests .docx - Biochemical Tests in Microbiology...

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Biochemical Tests in Microbiology Madalene Billings 11/12/2019
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1 Lot Number(s) Record the lot numbers for each bacterial species, printed on the labels of the original lyophilized culture vials. Species Lot number Escherichia coli 50-5063A Staphylococcus epidermidis 50-5063A Micrococcus luteus 50-5063A Observations Data Table 1 Species Reaction(s) observed Escherichia coli Staphylococcus epidermidis Micrococcus luteus 1. Based upon your results from the fermentation activity, were any of the microbes able to ferment lactose and/or sucrose? If so, which? How could you tell? 2. Based upon your results from the fermentation activity, were any of the microbes able to produce hydrogen sulfide? If so, which? How could you tell? Data Table 2 © 2018 Carolina Biological Supply Company
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2 Species Color change (yes/no) and color
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Unformatted text preview: observed Escherichia coli No Staphylococcus epidermidis No Micrococcus luteus No 3. Based upon your results from the oxidase experiment, did any of the microbes contain cytochrome c oxidase? If so, which? How could you tell? a. No. None. Because there was never a color change. Data Table 3 Species Bubbles (yes/no) Escherichia coli Yes Staphylococcus epidermidis No Micrococcus luteus No 4. Based upon your results from the catalase experiment, were any of the microbes able to convert hydrogen peroxide to water and oxygen? If so, which? How could you tell? a. Yes, E. Coli. Because it started to bubble. © 2018 Carolina Biological Supply Company 3 Photos Photo 4 Photo 5 5 © 2018 Carolina Biological Supply Company...
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