CUET UG · Biology / Biological Studies (Domain)
Microbes in food production, industry, sewage treatment, biogas, biocontrol agents.
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Q1 · Microbes in Human Welfare · EASY
Which of the following microorganisms is used in the commercial production of citric acid?
Q2 · Microbes in Human Welfare · MEDIUM
In a sewage treatment plant, the BOD (Biochemical Oxygen Demand) of wastewater is reduced significantly during secondary treatment. Which of the following microbial processes is primarily responsible for this reduction?
Q3 · Microbes in Human Welfare · MEDIUM
A farmer wants to use a biocontrol agent to protect his crop from insect pests instead of chemical pesticides. Which of the following would be the most appropriate choice?
Q4 · Microbes in Human Welfare · HARD
In a biogas plant, the methanogenic bacteria convert certain substrates into methane during anaerobic digestion. Which of the following is NOT a direct substrate for methanogenic bacteria?
Q5 · Microbes in Human Welfare · MEDIUM
During sewage treatment, which of the following organisms help in the degradation of organic matter in the activated sludge?