lec7

What is the purpose of the Indole test in microbiology?

• To detect the presence of Glutaminase

• To detect the presence of Tryptophanase

• To detect the presence of Tyrosinase

• To detect the presence of Lysinase

Which reagent is used in the Indole test to detect the presence of Indole?

• Citrate reagent

• Kovac’s reagent

• Methyl Red

• Voges-Proskauer reagent

What color indicates a positive result in the Indole test?

• Green

• Yellow

• Blue

• Red

What is the purpose of the Voges-Proskauer test in microbiology?

• To detect the presence of urea

• To detect the presence of citrate

• To detect the presence of acetoin

• To detect the presence of glucose

Which reagents are added to the test broth in the Voges-Proskauer test?

• KOH and alpha-napthol

• HCl and alpha-napthol

• KOH and Bromothymol blue

• HCl and Bromothymol blue

What color indicates a positive result in the Voges-Proskauer test?

• Blue

• Green

• Red

• Yellow

What color indicates a positive result in the Citrate utilization test?

• Red

• Yellow

• Blue

• Green

What medium is used to perform the Urease test?

• Glucose phosphate medium

• Simmon’s citrate agar

• Peptone water broth

• Urea agar base

What does the Triple Sugar Iron (TSI) & Kligler iron agar (KIA) test aid in differentiating?

• Differentiation of gram-positive bacteria

• Differentiation of enteric gram-negative bacilli

• Differentiation of viruses

• Differentiation of fungi

What color indicates an alkaline condition in the Phenol red indicator?

• Red

• Yellow

• Green

• Blue