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The given figure represents a typical biogas plant. Select the correct option for A, B and C respectively:-

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Important Questions on Microbes in Human Welfare

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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Study the following statements and select the incorrect ones?
(i) Physical removal of large and small particles through filtration and sedimentation is called primary sewage treatment
(ii) Secondary sewage treatment is mainly a mechanical process
(iii) Activated sludge sediment in s sewage treatment plant is a rich source of aerobic bacteria
(iv) Biogas, commonly called as gobar gas, is pure methane
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Which of the following in sewage treatment removes suspended solids?
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
The microorganisms involved in floc formation during sewage treatment are
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Explain in brief the biogas production process with the help of a labelled figure.
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
The technology of biogas production was developed in India due to the efforts of:
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
What is biogas? Name any two main constituents of biogas.
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
In sewage treatment, secondary treatment is considered highly significant, because
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Describe the role of Microbes in sewage treatment plant.
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas

The below diagram represents a typical biogas plant. Select the correct option for A, B and C respectively?

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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Microbe which help in the production of Biogas is
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Which bacteria is commonly found in the anaerobic sludge during sewage treatment?
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas

Assertion (A): Organisms of Monera having pseudomurein in cell walls are producers of biogas

Reason (R): Archaebacteria present in the gut of ruminants animals produce methane

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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Define bioreactor. 
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Sewage water can be purified by:
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Explain the biogas plant with a neat labelled diagram.
MEDIUM
Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Differentiate between the primary and secondary treatment of sewage. 
MEDIUM
Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
What is sewage? Write a note on the secondary or biological treatment of sewage. 
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
The gas present in maximum proportion in gobar gas is
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
Biogas is the __________ source of energy.
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Biology>Biology in Human Welfare>Microbes in Human Welfare>Microbes in Production of Biogas
What gases are produced in anaerobic sludge digesters?