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Microbes in Human Welfare

Short Answer Type

101.

Name the two different categories of microbes naturally occurring in sewage water. Explain their role in cleaning sewage water into usable water.

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102. Write the scientific name of the microbe used for fermenting malted cereals and fruit juices.

731 Views

103.

Study the graph given below. Explain how oxygen concentration is affected in the river when sewage is discharged into it.

662 Views

104.

The diagram above is that of a typical biogas plant. Explain the seQ uence of events occurring in a biogas plant. Identify a, b and c.

546 Views

105.

Explain the different steps involved during primary treatment phase of sewage.

836 Views

106. State the medicinal value and the bioactive molecules produced by Streptococcus, Monascus and Trichoderma.

960 Views

107.

What are methanogens ? How do they help to generate biogas?

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108.

Mention the role of cyanobacteria as a biofertiliser.

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109. Name the source of cyclosporin-A. How does this bioactive molecule function in our body?

Cyclosporin A, is produced by the fungus Trichoderma polysporum. Cyclosporin-A is a bioactive molecule which is used as an immunosuppressive agent in organ-transplant patients.

848 Views

110.

Name a free-living and a symbiotic bacterium that serve as bio-fertilizer. Why are they called so?

2074 Views