Microbiology: Voges-Proskauer Test

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Science, Chemistry, Biology
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University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary focus of the methyl red test?
Conversion of glucose to neutral end products
Conversion of acetoin to diacetyl
Conversion of pyruvic acid to mixed organic acids
Conversion of glucose to pyruvic acid
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which molecule is directly involved in the Voges-Proskauer test reaction?
Butanediol
Pyruvic acid
Acetoin
Glucose
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What reagent is used in the Voges-Proskauer test to convert acetoin to diacetyl?
Oxygen gas
All of the above
Potassium hydroxide
Alpha-naphthylamine
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What color change indicates a positive Voges-Proskauer test?
Blue
Green
Red
Yellow
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the Voges-Proskauer test differ from the methyl red test?
It measures the conversion of pyruvic acid to mixed organic acids.
It measures the conversion of glucose to acidic end products.
It measures the conversion of acetoin to butanediol.
It measures the conversion of glucose to neutral end products.
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