34. This type of medium was used to prepare tubes not primarily used for the cul

Question

34. This type of medium was used to prepare tubes not primarily used for the cultivation of anaerobes but to determine the oxygen requirements of different bacteria. a. Fluid thioglycollate medium b. TGY A shake c. Brewer's agar d. Nutrient agar 35. A solid medium used in lab to culture anaerobes in petri dishes containing thioglycollate, a reducing agent, and resazurin, an oxidation/reduction indicator is b. Brewer's agar 36. The most common cause of a urinary tract infection is a. Fluid thioglycollate medium c. Trypticase soy agar d. All of the above a. E.coli b. S. aureus c. P. vulgaris d. B. cereus 37. Which of the following tubes represents the growth of a facultative organism such as E. coli? 2 4 5 a. Tube 1 b. Tube 2 c. Tube d. Tube 4 38. Natural antimicrobial agents produced by bacteria and fungi are a) Endospores b) Antibiotics c) Antibodies d) All of the above 39. A test used for measuring the effectiveness of certain antimicrobials against pathogens is the a. Dorner method b. Kirby Bauer method c. Streak plate method d. None of the above 40. Which antibiotic below is the most effective against the pathogen growing on the petri dish?

Explanation / Answer

Ans 34 : a) Fluid Thioglycollate medium

The fluid glycollate medium is a differential medium which is used to determine the oxygen requirements of different bacteria. The medium allows the growth of obligate anaerobes , as the sodium glycollate present in the broth utilises the oxygen.

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