Microbes in Human Welfare

This is an MCQ-based quiz on the topic of Microbes in Human Welfare.

This includes Household Products, Industrial Products, Fermented Beverages, Antibiotics and Vaccines, Enzymes and chemicals, Sewage Treatment, Secondary Treatment, and many more.

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The technology of biogas production from cow dung was developed in India largely due to the efforts of

Indian Agricultural Research Institute and Khadi & Village Industries Commission Indian Oil Corporation Oil and Natural Gas Commission Gas Authority of India

Saccharomyces cerevisiae is used primarily for

Baking Bleaching None of these Biofuel

Which of the following is mainly produced by the activity of aerobic bacteria on sewage

March gas Laughing gas Mustard gas Propane

Select the correct statement from the following

Activated sludge sediment is dettlement tanks of sewage treatment plant is rich source of aerobic bacteria Biogas is produced by the activity of aerobic bacteria on animal waste None of these Biogas commnly called gobar gas in pure methane

Secondary sewage tretment is mainly a

Biological process Chemical proces Mechanical process Physical proces

During which stage of the purification of the sewage water are microbes used?

Primary treatment Secondary treatment Tertiary treatment Both (1) and (2)

This is a good producer of citric acid

Aspergillus Clostridium Saccharomyces Pseudomonas

This is not an example of performing biological control of diseases/pests using microbes

Trichoderma sp. against some plant pathogens Nucleopolyhedrovirus against insects and other arthropods Ladybird beetle against aphids Bt-cotton to increase yield

_____ is chiefly produced by the activity of an anaerobic bacteria on sewage.

Laughing gas Propane Mustard gas Marsh gas

Which is not an example of performing biological control of diseases/pests using microbes ?

Trichoderma sp. against some plant pathogens Nucleopolyhedrovirus against insects and other arthropods Ladybird beetle against aphids Bt-cotton to increase yield

In Swiss cheese, big holes are made by a ______.

Bacterium producing methane gas

Machine

Fungus releasing a lot of gases while its metabolic activities

Bacterium producing large quantities of carbon dioxide

For the production of ethanol, the most common substrate used in distilleries is ______.

Soya meal

Molasses

Ground gram

Cornmeal

Which of the following is not a biofertilizer ?

Agrobacterium