In the lauryl tryptose broth test, which combination describes the bacteria associated with a positive result?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the ADEQ Water Treatment Levels 1 and 2. Study with tailored questions, in-depth explanations, and interactive quizzes. Elevate your skills and ensure exam success!

Multiple Choice

In the lauryl tryptose broth test, which combination describes the bacteria associated with a positive result?

Explanation:
Lauryl tryptose broth is used to screen for coliform bacteria by lactose fermentation, with gas production indicating a positive result. Coliforms are typical enteric bacteria that are Gram-negative, nonspore-forming, and rod-shaped. So the bacteria associated with a positive result are red-stained (Gram-negative), nonspore-forming, and rod-shaped. The other descriptions describe Gram-positive organisms, spore-formers, or filamentous forms, which do not fit the coliform profile.

Lauryl tryptose broth is used to screen for coliform bacteria by lactose fermentation, with gas production indicating a positive result. Coliforms are typical enteric bacteria that are Gram-negative, nonspore-forming, and rod-shaped. So the bacteria associated with a positive result are red-stained (Gram-negative), nonspore-forming, and rod-shaped. The other descriptions describe Gram-positive organisms, spore-formers, or filamentous forms, which do not fit the coliform profile.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy