Question Bank: Microbes in Human Welfare

Which type of bacteria is primarily involved in the fermentation of milk to produce curd?

What gas is produced by yeast during the dough fermentation process?

Which of the following products is made by fermenting palm sap?

What role do lactic acid bacteria play in the human body?

Which bacterium is responsible for the holes in Swiss cheese?

What is the main function of baker's yeast in bread-making?

Why is Penicillin considered an important antibiotic?

Which of the following foods involves fermentation by bacteria?

Which of the following is not a function of microbes in household products?

Saccharomyces cerevisiae is used in which of the following processes?

Which component in milk is primarily converted to lactic acid during curd formation?

In traditional cheese production, which type of microorganism is typically utilized for ripening?

What is the product of fermentation by yeast in the making of alcoholic beverages?

Which of the following processes does NOT involve microbial activity?

What characteristic flavor in Roquefort cheese is imparted by specific microbes?

What effect does fermentation have on food preservation?

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

Which type of bacteria primarily aid in the secondary treatment of sewage?

What does BOD stand for in wastewater treatment?

During the secondary treatment process, what is formed as a result of microbial growth?

Which of the following gases is produced during the anaerobic digestion of sludge?

What is the role of grit chambers in sewage treatment?

In wastewater treatment, what is the significance of sedimentation in primary treatment?

Why is it important to reduce the BOD of sewage effluent before discharge?

Which stage of sewage treatment primarily uses aerobic processes?

Activated sludge can be recycled back to the aeration tank for which purpose?

Why is sewage treatment necessary before discharging into natural water bodies?

Which microbial action primarily occurs in anaerobic digestion of sludge?

Which of the following statements about sewage treatment is false?

What is the main source of energy produced during anaerobic digestion?

In which part of sewage treatment is the supernatant formed?

Which stage of sewage treatment is aimed at enhancing biological degradation of organic matter?

Which microbe is primarily used in the fermentation of beer and bread?

What type of product is penicillin classified as?

Which of the following microbes is known for producing cheese with distinct flavor?

What is the primary metabolic product of yeast during the fermentation process for alcoholic beverages?

Which process is used for producing vinegar from alcoholic beverages?

Which of the following is a benefit of using microbes in industrial fermentation?

In industrial applications, what is the large vessel called where microbial fermentation occurs?

What is the main by-product of fermentation that causes dough to rise?

What is the effect of Lactobacillus on milk during the curd-making process?

Which type of antibiotic was among the first to be discovered and is derived from a fungus?

During the fermentation of grape juice to produce wine, what is primarily being converted?

What role do microbes play in the production of biogas?

Which type of fermentation results in the production of alcohol and carbon dioxide?

What is a common method to prevent spoilage in the fermentation process?

What is the primary function of enzymes in microbial fermentation?

What is the primary characteristic of a fermentor used in industrial fermentation?

What product results from the fermentation of lactose by Lactobacillus?

Why is fermentation advantageous for food preservation?

What is the significance of scaling up microbial fermentation in industry?

What is the primary gas produced by methanogenic microbes in biogas production?

Which of the following substrates can methanogens utilize to produce biogas?

What type of environment do methanogenic bacteria thrive in?

During the biogas production process, what happens to the organic waste?

What is 'gobar gas' primarily made up of?

Biogas plants are more commonly built in which areas?

Which organism is a significant contributor to biogas production in the rumen of cattle?

What is the main function of the floating cover in a biogas plant?

What is one of the primary uses of biogas produced in rural areas?

Which of the following is NOT a benefit of biogas production?

The treatment of sewage using microbial activity is mainly beneficial for what reason?

What role do microbial processes play in the recycling of nutrients in biogas systems?

Which of the following is NOT a limitation of biogas technology?

In what way is the technology of biogas production important for rural development?

How can biogas production contribute to environmental sustainability?

The presence of which gas is often associated with the odor of biogas?

What is biocontrol in agriculture?

Which of the following is a microbial biocontrol agent used against caterpillars?

What is the primary advantage of using microbes for pest control?

Which organism is used to control aphid populations?

What role do Trichoderma species play in agriculture?

The use of Baculoviruses in pest control is advantageous because they are:

How do microbial biocontrol agents like Bacillus thuringiensis function?

Bt-cotton is a genetically modified plant resistant to pests because it:

Which aspect of biocontrol helps maintain biodiversity?

An organic farmer's approach to pest management primarily focuses on:

Which of the following is NOT a biocontrol agent?

What type of pest does Nucleopolyhedrovirus target?

One significant challenge in using biocontrol agents is:

Why is it important to manage pest populations instead of outright extermination in agriculture?

Which of the following statements about biocontrol is false?

What is the role of Rhizobium in agriculture?

Which group of microorganisms is primarily responsible for fixing atmospheric nitrogen in agricultural systems?

What is a key benefit of using mycorrhizal fungi as biofertilisers?

Which of the following biofertilisers can improve soil fertility by fixing nitrogen in a legume crop?

Which phenomenon involves cyanobacteria contributing to soil fertility in paddy fields?

Which genus of fungi is primarily known for forming mycorrhizal associations with plants?

Which of the following is an organic farming practice that reduces dependence on chemical fertilizers?

What is one disadvantage of chemical fertilizers compared to biofertilisers?

Which of the following is true about Azospirillum as a biofertiliser?

Which biofertiliser enhances phosphorus uptake via mycorrhizal association?

What is the main reason organic farmers use biofertilisers?

Which organism is often used in biological control to enhance soil quality?

Cyanobacteria are considered beneficial in agriculture primarily due to their ability to:

How do biofertilisers contribute to sustainable agriculture?

What is a common method of applying biofertilisers in agriculture?