Biotechnological Approaches Of Microalgal Culture(Environmental Biotechnology ) Questions and Answers

Question 1. Which of the following process is not included when Xenobiotics are transformed into the metabolism of an organism?
  1.    Reduction
  2.    Hydrolysis
  3.    Photosynthesis
  4.    Oxidation
Explanation:-
Answer: Option C. -> Photosynthesis
Answer: (c).Photosynthesis
Question 2. Which of the following helps to increase Xenobiotic metabolism in body?
  1.    Gypsum
  2.    Quercetin
  3.    Citric acid
  4.    Xenoestrogen
Explanation:-
Answer: Option B. -> Quercetin
Answer: (b).Quercetin
Question 3. Which of the following can utilize the light source to promote growth of phototrophic microorganisms?
  1.    Algal blooms
  2.    Photo bioreactor
  3.    Stir tank bioreactor
  4.    Zooplankton
Explanation:-
Answer: Option B. -> Photo bioreactor
Answer: (b).Photo bioreactor
Question 4. Which of the following is an important step before further processing of the algal biomass grown in a photo bioreactor?
  1.    Harvesting
  2.    Centrifugation
  3.    pH change
  4.    Volume change
Explanation:-
Answer: Option A. -> Harvesting
Answer: (a).Harvesting
Question 5. How does the oil from the algal biomass is removed?
  1.    Solvent extraction
  2.    Water extraction
  3.    Gel extraction
  4.    Sieving
Explanation:-
Answer: Option A. -> Solvent extraction
Answer: (a).Solvent extraction
Question 6. Which of following physical methods cannot be used for harvesting algal biomass of waste water?
  1.    Sedimentation
  2.    Floatation
  3.    Filtration
  4.    Chlorination
Explanation:-
Answer: Option D. -> Chlorination
Answer: (d).Chlorination
Question 7. Which of the following process involves accumulation of chemical followed by quick mixing?
  1.    Ultra filtration
  2.    Sedimentation
  3.    Filtration
  4.    Coagulation
Explanation:-
Answer: Option D. -> Coagulation
Answer: (d).Coagulation
Question 8. Which of the following cannot be degraded by algal assemblage?
  1.    Alcohol
  2.    Organic pollutants
  3.    Carbonic acid
  4.    Water
Explanation:-
Answer: Option B. -> Organic pollutants
Answer: (b).Organic pollutants
Question 9. Algal biomass harvesting is done by segregating various waste streams.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
Explanation:-
Answer: Option A. -> True
Answer: (a).True
Question 10. Which of the following involves encapsulation of cells?
  1.    Immobilization
  2.    Enzyme reaction
  3.    Biofilm development
  4.    Pasteurization
Explanation:-
Answer: Option A. -> Immobilization
Answer: (a).Immobilization
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