Environmental Biotechnology

MICROBIAL TRANSFORMATIONS OF PESTICIDES MCQs

Total Questions : 86

Page 1 of 9 pages
Question 1. Which of the following are usually not degraded by aerobic degradation of nitro-aromatics?
  1.    Di-nitro derivatives
  2.    Mono derivatives
  3.    Poly-nitro derivatives
  4.    Amino aromatics
 Discuss Question
Answer is Option D. -> Amino aromatics
Answer: (d).Amino aromatics
Question 2. Which of the following helps to hydrolyze the nitro-aromatics?
  1.    Exo enzymes
  2.    Endo enzymes
  3.    Sodium
  4.    Potassium
 Discuss Question
Answer is Option A. -> Exo enzymes
Answer: (a).Exo enzymes
Question 3. Which of the following can be used for decontamination of nitro aromatic pesticides from the soil?
  1.    Ex situ techniques
  2.    In situ techniques
  3.    Poly-nitro derivatives
  4.    Amino aromatics
 Discuss Question
Answer is Option A. -> Ex situ techniques
Answer: (a).Ex situ techniques
Question 4. Nitro-aromatic compounds found in the environment are known as which of the following?
  1.    Water
  2.    Oxygen
  3.    Carbon
  4.    Recalcitrant
 Discuss Question
Answer is Option D. -> Recalcitrant
Answer: (d).Recalcitrant
Question 5. Which of the following property is shown by the exo-enzyme with bio polymers?
  1.    Adsorption
  2.    Absorption
  3.    Miscibility
  4.    Immiscibility
 Discuss Question
Answer is Option A. -> Adsorption
Answer: (a).Adsorption
Question 6. Which of the following microorganisms is involved in dealkylation process?
  1.    Birds
  2.    Fungi
  3.    Human
  4.    Vertebrates
 Discuss Question
Answer is Option B. -> Fungi
Answer: (b).Fungi
Question 7. Which of the following is not a method of dealkylation using microorganisms?
  1.    Adsorption
  2.    Chemical precipitation
  3.    Microbial demethylations
  4.    Reverse osmosis
 Discuss Question
Answer is Option C. -> Microbial demethylations
Answer: (c).Microbial demethylations
Question 8. How fungi help in de-alkylation?
  1.    Oxidation
  2.    Reduction
  3.    Assimilation
  4.    Accumulation
 Discuss Question
Answer is Option A. -> Oxidation
Answer: (a).Oxidation
Question 9. Which of the following technique is used to metabolize cresols?
  1.    Activated Alumina
  2.    Microbial dealkylation
  3.    Reverse osmosis
  4.    Chemical precipitation
 Discuss Question
Answer is Option B. -> Microbial dealkylation
Answer: (b).Microbial dealkylation
Question 10. Pesticides with more than one alkoxyl group cannot be de-alkylated.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer is Option B. -> False
Answer: (b).False