Microbes in Human Welfare(In household Food Processing, Industrial Production, Sewage Treatment, Energy Generation and as Biocontrol Agents and Biofertilizers.) NEET Questions

Biology - Biology and Human Welfare

Microbes in Human Welfare(In household Food Processing, Industrial Production, Sewage Treatment, Energy Generation and as Biocontrol Agents and Biofertilizers.) MCQ Questions


1.
Curd is produced from milk by which microorganism?
A.
Saccharomyces cerevisiae
B.
Lactobacillus (LAB)
C.
Penicillium notatum
D.
Aspergillus niger
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ANSWER :
B. Lactobacillus (LAB)
2.
The microbial activity that improves the nutritional quality of curd is the increase in:
A.
Vitamin D
B.
Vitamin B12
C.
Vitamin A
D.
Vitamin K
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ANSWER :
B. Vitamin B12
3.
The puffed-up appearance of dough used to make idli and dosa is due to:
A.
Mechanical aeration
B.
Heating of dough
C.
Production of CO2 gas during fermentation
D.
Production of CO2 by bacteria
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ANSWER :
C. Production of CO2 gas during fermentation
4.
The microbe used in making bread is:
A.
Streptococcus lactis
B.
Saccharomyces cerevisiae
C.
Lactobacillus
D.
Aspergillus niger
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ANSWER :
B. Saccharomyces cerevisiae
5.
Toddy, a traditional drink of southern India, is prepared by fermenting which substance?
A.
Sugarcane juice
B.
Apple juice
C.
Barley extract
D.
Sap from palms
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ANSWER :
D. Sap from palms
6.
Cheese is one of the oldest food items produced by microbial action. The large holes in 'Swiss cheese' are due to production of:
A.
Hydrogen sulphide
B.
Oxygen by yeast
C.
Methane
D.
Large amounts of CO2 by Propionibacterium sharmanii
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ANSWER :
D. Large amounts of CO2 by Propionibacterium sharmanii