Category Archives: Environmental Biotechnology MCQ

This set of Basic Environmental Biotechnology Questions and Answers focuses on “Microbial Transformations of Pesticides – Beta – Oxidation”. 1. Which of the following causes Beta-oxidation contamination of the whole habitat? a) Water b) Cow dung c) Agricultural pesticides d) Crops 2. Which of the following is least affected by the toxicants released from the … Read more

This set of Environmental Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Fundamental Reactions of Pesticide Metabolism”. 1. Which of the following condition is not suited for aerobic pesticide treatment of solid wastes? a) Controlled temperature b) Controlled moisture c) Closed vessel d) Open vessel 2. Which of the following type of waste is … Read more

This set of Environmental Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “ Microbial Production of Fuels”. 1. Why is S. cerevisiae is used to derive butanol? a) It has high growth rate b) It can overcome toxicity c) Changes its own cell wall composition in response to toxicity d) High tolerance to butanol … Read more

This set of Environmental Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Microbial Extraction of Petroleum”. 1. Which oil recovery mechanism yields the most oil andis the most efficient oil recovery mechanism? a) Selective plugging by microorganisms and their metabolites b) Oil viscosity reduction by gas production c) Production of acids by dissolving minerals … Read more

This set of Environmental Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Microbial Recovery of Phosphate”. 1. At which step in the below diagram, phosphorus is released? a) Incineration b) Ash c) Bioleaching d) Anaerobic digestion 2. Which of the following is the correct phosphate pathway? a) b) c) d) 3. Phosphorus accumulating microbes … Read more

This set of Environmental Biotechnology online quiz focuses on “Metal Recovery by Bioleaching Process”. 1. Which commercial bioleaching processes among the following involves piling up of uncrushed waste rock? a) In Situ b) Dump Leaching c) Heap Leaching d) Vat Leaching 2. What percentage of total world copper production do bioleach of copper alone contributes? … Read more

This set of Environmental Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Microbes in Bioleaching Process”. 1. Microbially catalyzed redox reaction leads to metal ________ a) Mobilization b) Immobilization c) Reduction d) Oxidation 2. Which of the following is the most common bacteria used for bioleaching? a) Spirillum b) Coccus c) Bacillus d) Streptococcus … Read more

This set of Environmental Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Microbial Applications for Metal Removal”. 1. Which of the following process helps in the uptake of heavy metals in bacteria? a) Bioaccumulation b) Bio augmentation c) Bioleaching d) Vermicomposting 2. Mercury resistance or heavy metal resistance in bacteria is usually found in … Read more

This set of Environmental Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Genetic Aspects of Heavy Metal Resistance”. 1. Which of the following resistance in bacteria is usually found in heavy metal contaminated sites? a) Mercury b) Copper c) Nickle d) Magnesium 2. The common feature of mercury resistance bacteria compared to the clinical … Read more

This set of Environmental Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Metal – Microbe Interactions”. 1. Which of the following is not a sub division of Metal – Microbe Interactions? a) Intra cellular accumulation b) Transformation of metals c) Cell wall-metal interaction d) Hydrolysis 2. Which of the following functions is not important … Read more