NEET Botany Microbes in Human Welfare Class 12 Questions

Large holes in 'Swiss cheese' are due to production of large amount of CO₂ by bacterium

Which of the following is a free-living biocontrol microbial agent for plant pathogen?

Identify the organisms that are found in hot springs.

Which group of organisms is responsible for the production of biogas from the dung of cows and buffaloes?

Select the organism exploited for producing immunosuppressive agent in organ-transplant patients.

Given below are assertion and reason mark the correct choice from given options. Assertion: The primary effluent is passed into large aeration tanks where it is constantly agitated mechanically and air is pumped into it.

Which of the following is correctly matched for product produced by them?

What type of microbes are primarily used as sources of biofertilisers?

Which yeast is commonly used for the fermentation of beverages like wine and beer?

What is the first stage of sewage treatment that involves the physical removal of particles from sewage?

Which microbe is primarily used for brewing alcoholic beverages like beer and wine?

What is the first stage of sewage treatment that involves the physical removal of particles?

What is the primary process involved in the first stage of sewage treatment?

What is one primary use of the biogas produced in biogas plants?

What is the primary use of biogas produced in biogas plants?

What is a primary benefit of using biocontrol agents in agriculture?

What is the primary benefit of using biocontrol agents in agriculture?

Which yeast is commonly known as brewer’s yeast and is used for fermenting malted cereals and fruit juices to produce ethanol?

Which yeast is commonly used for the production of alcoholic beverages such as wine and beer?

Which yeast is commonly used for the fermentation of malted cereals and fruit juices to produce alcoholic beverages?

What is the primary use of the spent slurry produced in a biogas plant?

What is the primary use of the biogas produced in a biogas plant?

What is the primary purpose of the primary treatment stage in sewage treatment?

What is the primary purpose of the primary treatment stage in sewage treatment?

What is the primary purpose of primary treatment in sewage treatment?

What is a key benefit of using biocontrol agents in agriculture?

Which yeast is commonly known as brewer's yeast and is used for the fermentation of malted cereals and fruit juices?

Which yeast is commonly used for fermenting malted cereals and fruit juices to produce ethanol?

What is a primary reason for using biocontrol agents in agriculture?

What is the primary purpose of the primary treatment stage in sewage treatment?

Which yeast is commonly used in the fermentation of malted cereals and fruit juices to produce ethanol?

What is the primary use of the biogas produced in biogas plants?

What is the primary use of biogas produced in biogas plants?

What is the primary purpose of the primary treatment in sewage treatment?

What is the primary purpose of the primary treatment in sewage treatment?

What is the primary benefit of using biocontrol agents in agriculture?

What is the primary goal of using biocontrol agents in agriculture?

Which of the following statements about the role of microbes in household products is correct?

Which of the following statements about the use of microbes in household products is correct?

Which of the following statements about sewage treatment is correct?

Which of the following statements about the use of microbes in household products is correct?

Which of the following statements about sewage treatment is correct?

Which of the following statements about sewage treatment is correct?

Which of the following statements about biocontrol agents is correct?

Which of the following statements about biogas production are correct?

Which of the following statements about biocontrol agents is correct?

Which of the following statements accurately describe the role of microbes in household products?

Which of the following statements about the role of microbes in household products is correct?

Which of the following statements about the role of microbes in household products is correct?

Which of the following combinations correctly describe the stages and processes involved in sewage treatment?