The urea test contains the indicator [chemical1] and is positive if [chemical2] is produced.

This reagent is bound to DNA in DNAse Agar.

Three bacteria (A, B, C) are inoculated on Blood agar. What can you tell about bacterium B?

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

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

A microorganism ferments glucose to a single acid product.  Based on this information, it would test positive in: (select all that apply)

What reagent is responsible for the color observed in C?

This blue-green pigment is secreted by Pseudomonas aeruginosa on Pseudomonas Isolation Agar.

Which one(s) are positive in the starch hydrolysis tests below?

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