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Microorganisms having nitrilase activity can be enriched from soil samples by supplying nitriles as the sole nitrogen or carbon source in the growth medium. A problem with this approach is […]

Microbial leaching involves the process of dissolution of metals from ore breaking rocks using microorganisms. Which one of the following bacteria helps in leaching copper from its ore? (1) Acidithiobacillus […]

Column A lists names of microorganisms and column B lists the pollutants that are degraded by the microbes. Which one of the following options correctly matches the organism to the […]

Desulphovibrio desulfuricans (A) and Pseudomonas species (B) are involved in mercury bioremediation. Which of the statement below is correct? (1) A converts methyl mercury to mercuric ion, B converts mercury […]

The following are certain facts regarding bioremediation: A. Biodegradable plastics are made using polyhydroxy alkanoates (PHAs) such as polyhydroxybutyrate (PHB). B. Pseudomonas putida F1 bacterial strain is involved in degradation […]

Bio-augmentation refers to: (1) Developing microbial strains through genetic engineering which can degrade pollutants and toxic compounds efficiently. (2) Ex- situ bioremediation of toxins from soil or any other contaminant […]

2. Release of nutrients, oxidants or electron donors into the environment to stimulate naturally occurring microorganisms to degrade a contaminant, is referred to as (1) biostimulation.                                           (2) phytoremediation. (3) bioaugmentation.                                       […]

In bioremediation by microorganisms detailed below, choose INCORRECT option? (1) The organic contaminants provide a source of carbon (2) The bacteria do not get energy by degrading contaminants. (3) Bacteria […]