True or False The organism on the right is non-motile and grows only on the stab

Question

True or False The organism on the right is non-motile and grows only on the stab. An alkaline reaction involving the litmus milk test will cause the tube to become Red White Purple Translucent True or False The positive control for the phenylalanine deaminase test was E. coli True or false The SIM test is used to detect hydrogen sulfide production, motility, and glucose fermentation In Order to detect neutral end product fermentation Barritt's reagent A and B should be used Methyl red should be added Kovac's reagent should be added An artificial acceptor should be used True or False E.coli was the positive control for the nitrate reduction test. True or False E.coli can ferment glucose.

Explanation / Answer

16. Question is not clear.

17. Litmus test turns towards red on acidic reaction and towards blue on alkaline reaction. So answer would be c. purple.

18. False. E.coli was used as a negative control.

19.False. SIM test detects hydrogen sulphide production, motility and indole formation.

20. Answer would be b.) Methyl red should be added.

21. True statement.

22. True. E.coli can ferment glucose.

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