The media used to detect the presence of organism that can produce mixed acids u

Question

The media used to detect the presence of organism that can produce mixed acids upon fermentation is called a) Starch agar b) Skim milk agar c) Urea agar d) MR-VP e) In order to detect neutral end product fermentation a) Barritt's reagent A and B should be used b) Methyl red should be added c) Kovac's reagent should be added d) An artificial acceptor should be used True or False E.coli was the positive control for the Neutral end product test. Which of the following is an acid fast microorganism? a) E. coli b) S.aureus C) S.pneumonia d) Mycobacterium smegmatis

Explanation / Answer

2. MR-VP broth from Hardy Diagnostics is the recommended in Voges-Proskauer and methyl red tests. This media is particularly designed to detect the organisms which are capable of performing mixed acid fermentation. for gram negative bacteria.

Hence, the correct answer is d) MR-VP

5) Mycobacterium smegmatis is an acid fast bacteria species belonging to the phylum Actinobacteria of Mycobacterium genus, and family Mycobacteriacae.

So, the answer is d) Mycobacterium smegmatis.

4). The statement is false because E-coli is used as negative control and klebsiella is used as positive control for the neutral end product test.

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