Describe the appearance of the  protein solutions in each of the tubes after addition of the alkaloidal  reagents.

Q: Urease breaks down urea into what product? What color is an indication of a positive urease test

A: Urease is catalytic enzymes that hydrolysis the urea . They belong to the super family of amyl…

Q: Ex. 5-4 Catalase 1) In the Catalase test (5-4), if bacteria was added to hydrogen peroxide on the…

A: The study of tiny living creatures such as bacteria, viruses, fungus, algae, and protozoa is known…

Q: What is the result for the yellow tube of Methyl red test? What must the pH be in each tube? What is…

A: Methyl red test This test usually aims to differentiate the facultative anaerobes enteric bacteria.…

Q: What is the purpose of adding the yogurt to the cooled milk in step 5?

A: Yogurt is ancient, and it is defined as a milk product that is fermented by 2 bacterial strains:…

Q: What would be the expected out come of a phenol red test If the bacteria is a pathogenic intestinal…

A: Phenol Red Broth is a general-purpose differential test medium typically used to differentiate…

Q: What is the purpose of chewing gum in the Snyder Test procedure outlined?

A: Dental caries is the disease of teeth in which microbes demineralize the teeth leading to a cavity.…

Q: Between Proteus mirabilis and Proteus vulgaris which are positive or negative for ornithine…

A: ornithine decarboxylase test is a special kind of biochemical test that helps to determine whether…

Q: what is the purpose of the FeCl3 in this aspirin test?

A: Now, setting up and observing the breakdown:1) Divided: We split apirin into two tubes, one with HCl…

Q: Which of the following are positive for the production of indoor from the amino acid tryptophan?

A: indole is produced by reductive deamination from tryptophan through the intermediate molecule indole…

Q: In the amino acid decarboxylase test (lysine decarboxylase), we added mineral oil to the tube before…

A: Introduction The Lysine Decarboxylase Test Is Based On Some Bacteria's Capacity To Convert L-lysine…

Q: Erysipelothrix rhusiopathiae is a gram positive bacilli that survives in water contaminated by a…

A: Erysipelothrix rhusiopathiae is a gram-positive, rod-shaped, nonmotile, bacillus bacteria.

Q: Think of another type of test to determine whrther a person is lactase persistent or nonpersistent.…

A: Lactase is an enzyme that is generated by a variety of species. It is found in the brush boundary of…

Q: Absorbance is directly proportional to glucose concentration for both routine clinical glucose…

A: Quantitative tests help to determine the concentration of target substance in the solution. The…

Q: Indicate whether you think that the number of cfu/ ml calculated would be too high or too low if you…

A: Cfu refers to the colony forming unit which is formed through continuous replication of a single…

Q: A milk sample was tested for the presence of typhimurium. Using a 10 microliter calibrated loop, a…

A: Serial dilution is the technique to find the concentration of bacteria in a sample when there are…

Q: Explain how to conduct a Kirby-Bauer disk diffusion test. Include all of the steps involved

A: INTRODUCTION Kirby - Bauer Disc diffusion method Kirby - bauer disc diffusion method is widely known…

Q: How much serum is needed to create 2μL of a 1:20 dilution

A: Question is related to drug calculation .  Detailed solution in step 2.