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What reagent was responsible for the color observed on this plate?

Use the dichotomous key and the data provided below to identify the organism. The results from testing an unknown organism gave the following results: Gram stain: purple rods SIM: Black precipitate formed, pink ring at top Hydrogen peroxide: Bubbles not produced when added to growth Urea Broth: Broth turned bright pink Motility: Cloudiness redness in deep

A microorganism ferments glucose to mixed acids.  Based on this information, it would test positive in: (select all that apply)

When the pH of the Mannitol salts agar goes below 6.8, the media will appear ___________________________.

A microorganism ferments glucose to mixed acids.  Based on this information, it would test positive in: (select all that apply)

Based on the results using the Staphyloslide agglutination kit in circle 6:

This medium can be used to identify fecal coliforms like E. coli in water samples.

This bacterium was inoculated onto Eosin Methylene Blue Agar. What sugar/s does this bacterium ferment?

Gram-positive bacteria will ___________________ on EMB agar.

Staphylococcus aureus and Serratia marcescens are inoculated on DNAse Agar. What can you tell about Serratia marcescens?