Which organism is NLF; Oxidase positive; Glucose neither; Alk/ALK?

Prepare for the CAMLPR Microbiology Test. Utilize flashcards and engaging multiple-choice questions, each equipped with descriptions and explanations. Ready yourself for an excellent performance!

Multiple Choice

Which organism is NLF; Oxidase positive; Glucose neither; Alk/ALK?

Start with the test pattern you’re given: a non-lactose fermenter that is oxidase positive and shows glucose metabolism with an alkaline (alkaline) end product rather than acid. That combination fits Alcaligenes faecalis. This organism is known to be oxidase positive and non–lactose fermenting, and in glucose utilization it yields an alkaline reaction rather than fermentation acid. The other organisms don’t match all three traits: some are not oxidase positive, or they do ferment lactose, or they don’t produce alkaline end products from glucose. So the best match for this profile is Alcaligenes faecalis.

Start with the test pattern you’re given: a non-lactose fermenter that is oxidase positive and shows glucose metabolism with an alkaline (alkaline) end product rather than acid. That combination fits Alcaligenes faecalis. This organism is known to be oxidase positive and non–lactose fermenting, and in glucose utilization it yields an alkaline reaction rather than fermentation acid. The other organisms don’t match all three traits: some are not oxidase positive, or they do ferment lactose, or they don’t produce alkaline end products from glucose. So the best match for this profile is Alcaligenes faecalis.

More practice questions