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Questions and Answers
Which bacterial species do not ferment lactose or produce hydrogen sulfide gas, resulting in colorless colonies?
Which bacterial species do not ferment lactose or produce hydrogen sulfide gas, resulting in colorless colonies?
- Klebsiella
- Proteus
- Shigella (correct)
- Escherichia coli
Which culture media is commonly used for the isolation of Salmonella to produce green colonies with black centers?
Which culture media is commonly used for the isolation of Salmonella to produce green colonies with black centers?
- Selenite broth
- Blood Agar
- Hektoen Enteric Agar (correct)
- MacConkey Agar
Which bacterial species is characterized by the absence of motility and the presence of a polysaccharide capsule, giving colonies a glistening, mucoid character?
Which bacterial species is characterized by the absence of motility and the presence of a polysaccharide capsule, giving colonies a glistening, mucoid character?
- Klebsiella (correct)
- Salmonella
- Escherichia coli
- Yersinia
Which test is commonly used for the identification of members of the Enterobacteriaceae family?
Which test is commonly used for the identification of members of the Enterobacteriaceae family?
Which bacterium ferments lactose rapidly and produces indole, allowing for easy differentiation from other species?
Which bacterium ferments lactose rapidly and produces indole, allowing for easy differentiation from other species?