Life Sciences
GATE XL topic:food-microbiology PYQs
Build your understanding with focused practice from past exam papers.
Questions 31–33 of 33. Imported answers require independent review unless marked reviewed.
Question 105
Open questionXL-UMCQ1 markNeeds review
In dye-reduction test for estimation of viable microorganisms, the most commonly used dyes are methylene blue, triphenyltetrazolium-chloride and ______________.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 107
Open questionXL-UMCQ2 marksNeeds review
Match the following metabolic product (Column I) that indicates the quality of food (Column II).
Column I
P. Ethanol
Q. Lactic acid
R. Trimethylamine
S. Volatile fatty acid
Column II
Canned vegetable
Fish
Butter
Apple juice
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 109
Open questionXL-UNAT2 marksNeeds review
A pure strain with generation time of 60 min is used in a fermentation process. Following inoculation (0 h), the strain takes 2 h for adaptation, 10 h to achieve maximum growth and 12 h to arrive at the point where the death rate is higher than the growth rate. If the inoculation load is 100 cells, the total population at the end of 10 h will be _________.
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