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Identification of Bacteria

Identification of Bacteria
Production of acetoin can be detected by which of the following tests?

Indole test
Methyl red test
Voges-Proskauer test
Citrate test

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Identification of Bacteria
Which of the following shows a positive urease test?

Klebsiella
Both (a) and (b)
None of these
Proteus

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Identification of Bacteria
Which of the following organisms can be demonstrated with silver impregnation method?

Spirochaetes
Vibrios
Shigella
Salmonella

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Identification of Bacteria
Which of the following is commonly used as Gram's decolouriser?

Ethyl alcohol
Acetone
Methyl alcohol
A mixture of ethyl alcohol and acetone

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Identification of Bacteria
The primary stain of Gram's method is

phenolpthalene
methyl red
crystal violet
safranin

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Identification of Bacteria
The deinococci are gram-positive cocci and rods that are distinctive in their unusually great resistance to

extreme temperatures
both (a) and (b)
radiation
desiccation

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