TS EAMCET Microbes in Human Welfare — practice questions
100 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice TS EAMCET Microbes in Human Welfare in the app →The 'large holes' in Swiss cheese are produced by:'Toddy' — a traditional fermented drink of southern India — is made from:Among the following beverages, which is produced WITHOUT distillation?Citric acid is produced industrially by:Production of acetic acid (vinegar) industrially uses:Which bacteria convert fresh milk into curd?Conversion of milk to curd improves nutrition by raising which vitamin?A spoonful of curd added to warm milk acts as which of the following?The puffed-up look of fermented idli and dosa dough is due to which gas?Which microbe is used to ferment dough for making bread?Which bacterium makes the large holes in Swiss cheese?Roquefort cheese gets its flavour when it is ripened with what?What are the very large vessels used for industrial-scale growth of microbes called?Which microbe ferments malted cereals and fruit juices to give ethanol?Which pair of beverages is produced without distilling the fermented broth?Which was the first antibiotic to be discovered?Fleming named penicillin after which mould?Fleming noticed a mould stopping the growth of which bacteria on his plate?Who established the full potential of penicillin as an effective antibiotic?Fleming, Chain and Florey shared a Nobel Prize in which year?Penicillin was widely used to treat wounded soldiers of which conflict?Which disease was once a mass killer but is now treated with antibiotics?Which fungus is used for commercial production of citric acid?Which bacterium is used to produce acetic acid?Butyric acid is commercially produced by which bacterium?Microbial lipases are added to laundry products to remove what?Bottled fruit juices are clarified using which enzymes?Streptokinase, used as a clot buster, is produced by which bacterium?Cyclosporin A, an immunosuppressant for organ transplants, comes from which fungus?Blood-cholesterol lowering statins are obtained from which yeast?Treatment of sewage in plants is mainly carried out by which organisms?Primary treatment of sewage involves which kind of process?During primary treatment, grit is removed from sewage by which step?In primary treatment, the solids that settle together form what?In the primary settling tank, the supernatant is called what?Primary effluent is passed into which tanks for secondary treatment?In sewage treatment, flocs are masses of what?What does a higher BOD of waste water indicate?The BOD test indirectly measures the amount of what in water?The sediment of bacterial flocs in the settling tank is called what?A small part of activated sludge is returned to the aeration tank as what?Where is the remaining activated sludge pumped for further digestion?Which gas mixture forms biogas during anaerobic sludge digestion?Which Indian ministry started the Ganga Action Plan and Yamuna Action Plan?Which gas is the main component of biogas?Which bacterium is a common methanogen?Methanogens in the rumen of cattle help in which process?Gobar gas is generated mainly from which raw material?What keeps rising over the dung slurry in a biogas plant as gas collects?After gas production, the spent slurry from a biogas plant can be used as what?Biocontrol means controlling plant diseases and pests by what?Which insect with red and black markings helps get rid of aphids?Which insect is useful for controlling mosquitoes?Which bacterium is used to control butterfly caterpillars?Where is the Bt toxin released to kill the insect larvae?Bt-cotton is cotton into which genes were introduced?Which free-living root fungus is a biocontrol agent against plant pathogens?What do biofertilisers do for the soil?The main sources of biofertilisers are which groups of organisms?Rhizobium forms root nodules in legumes and fixes which element?Which are free-living nitrogen-fixing bacteria in soil?The fungal partner in Glomus mycorrhiza absorbs which nutrient for the plant?How do lactic acid bacteria make milk set into curd?Which vitamin content of milk rises when it is converted into curd?In the human stomach, lactic acid bacteria are useful because theyBread dough is fermented using which microbe?Industrial-scale growth of microbes takes place in very large vessels calledWhisky, brandy and rum are obtained by which process after fermentation?Antibiotics are chemical substances that are produced byFleming noticed that Staphylococci could not grow around aPenicillin was named after which mould?Who shared the 1945 Nobel Prize for penicillin with Alexander Fleming?Commercial lactic acid comes from which microbe?Bottled fruit juices are clearer than home-made ones due toStatins that lower blood cholesterol are produced by the yeastHow do statins lower cholesterol?Municipal waste-water is commonly known asIn a sewage treatment plant, the treatment is carried out mainly byPrimary sewage treatment involvesThe solids that settle in the primary settling tank form theMasses of bacteria associated with fungal filaments in aeration tanks are calledBOD refers to the oxygen consumed if all the organic matter in one litre of water isA sample of waste water with a higher BOD hasAnaerobic digestion of sludge yields a gas mixture of methane, carbon dioxide andWhich Indian plans aim to cut river pollution by building sewage treatment plants?Biogas consists predominantly of which gas?Cattle dung is used for biogas mainly because itWhich institutions mainly developed biogas technology in India?In a biogas plant, the floating cover over the dung slurryA biogas plant is a concrete tank about how deep?Biocontrol means using biological methods for controllingDragonflies help biocontrol by getting rid ofWhich bacterium is used as a microbial biocontrol agent against caterpillars?Bt toxin kills insect larvae because it is released in theirWhich Indian crop carries Bt toxin genes for pest resistance?Baculoviruses used as biocontrol agents attackBiofertilisers are organisms thatThe main sources of biofertilisers are bacteria, cyanobacteria andRhizobium forms nodules on the roots of which plants?Glomus forms which association with plant roots?