Microbes in Human Welfare PYQ — Page 2

Which of the following in sewage treatment removes suspended solids?

Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from

Which of the following is wrongly matched in the given table?

Match Column-I with Column-II and select the correct option using the codes given below : <table class="pyq-table"><tbody><tr><td colspan="2">Column–I</td><td colspan="2">Column–II</td></tr><tr><td>a.</td><td>Citric acid</td><td>(i)</td><td>Trichoderma</td></tr><tr><td>b.</td><td>Cyclosporin A</td><td>(ii)</td><td>Clostridium</td></tr><tr><td>c.</td><td>Statins</td><td>(iii)</td><td>Aspergillus</td></tr><tr><td>d.</td><td>Butyric acid</td><td>(iv)</td><td>Monascus</td></tr></tbody></table>

The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:

A river with an inflow of domestic sewage rich in organic waste may result in:

Match the following list of microbes and their importance: <table class="pyq-table"><tbody><tr><td></td><td>Column I</td><td></td><td>Column II</td></tr><tr><td>A</td><td>Lactobacillus</td><td>(i)</td><td>Production of genetically-engineered clot busters</td></tr><tr><td>B</td><td>Monascus purpureus</td><td>(ii)</td><td>Production of citric acid</td></tr><tr><td>C</td><td>Streptococcus</td><td>(iii)</td><td>Conversion of milk into curd</td></tr><tr><td>D</td><td>Aspergillus niger</td><td>(iv)</td><td>Production of blood-cholesterol lowering agents</td></tr></tbody></table>

The high value of BOD (Biochemical Oxygen Demand) indicates that:

What gases are produced in anaerobic sludge digesters?

During sewage treatment, biogases are produced, which include

A good producer of citric acid is

Microbe used for biocontrol of pest butterfly caterpillars:

In gobar gas, the maximum amount is that of

The domestic sewage in large cities

Measuring Biochemical Oxygen Demand (BOD) is a method used for

Monascus purpureus is a yeast used commercially in the production of

Yeast is used in the production of

The most abundant prokaryotes helpful to human in making curd from milk and in production of antibiotics are the ones categorized as

Organisms called Methanogens are most abundant in a

Secondary sewage treatment is mainly a

Continuous addition of sugars in 'fed batch' fermentation is done to

Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?

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

Ethanol is commercially produced through a particular species of