Microbes in Human Welfare questions
610 published questions with worked solutions.
- Bio-polishing and desizing of cotton fabric in the textile industry exploits enzymes produced by
- The solid particles that settle down during the primary treatment of sewage are collectively termed
- During the secondary (biological) treatment of sewage, the effluent from primary treatment is passed into large aeration tanks...
- The masses of bacteria associated with fungal filaments, forming mesh-like structures during secondary sewage treatment, are...
- A small part of the activated sludge from the settling tank in a sewage treatment plant is recycled back into the aeration tank...
- Anaerobic sludge digesters, which receive the bulk of activated sludge after secondary sewage treatment, are chiefly populated by
- In anaerobic sludge digesters, the activity of anaerobic bacteria on sludge produces a mixture of gases that includes significant...
- Sewage must be treated before being let into natural water bodies mainly because untreated sewage
- The group of anaerobic bacteria/archaea, including Methanobacterium, responsible for the generation of biogas are collectively...
- Methanogenic bacteria/archaea that generate biogas are typically found in large numbers in
- Cattle dung is an especially suitable raw material for biogas (gobar gas) production because it is naturally rich in
- A typical biogas plant consists of a cement/concrete tank called the digester, above which is fitted a
- In a biogas plant, slurry made of dung mixed with water is fed into the digester through the
- Which of the following best explains why biogas plants are widely adopted in rural India?
- Biogas, generated through the anaerobic breakdown of organic wastes by methanogens, is predominantly composed of
- The Indian institute/organisation historically credited with developing widely used biogas plant designs, such as the floating...
- Consider the following statements about biogas plants: I. The digester is a sealed concrete/cement tank. II. A floating or fixed...
- Which of the following is left as the solid by-product (usable as manure) after biogas generation from cattle dung?
- Which of the following fungi is widely used as a biocontrol agent against several soil-borne plant pathogens?
- Trichoderma, a biocontrol fungus, is typically found abundantly in which of the following habitats?
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration