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MCQs

Total Questions : 52 | Page 1 of 6 pages
Question 1. Which of the following factors doesn’t influence the Dose response relationship?
  1.    Membrane permeability rate
  2.    Quantifying response
  3.    Exposure time
  4.    Exposure route
 Discuss Question
Answer: Option A. -> Membrane permeability rate
Answer: (a).Membrane permeability rate
Question 2. Which of the following is important for the toxicant to cross several sub cellular structures?
  1.    Toxification
  2.    Sodium
  3.    Potassium
  4.    Biochemical degradation
 Discuss Question
Answer: Option A. -> Toxification
Answer: (a).Toxification
Question 3. With respect to dose effect relationship, which of the following factors doesn’t influence the direct uptake of toxicants during bio-accumulation?
  1.    Membrane permeability rate
  2.    Elimination
  3.    Rate of active transport
  4.    Rate of active transport
 Discuss Question
Answer: Option B. -> Elimination
Answer: (b).Elimination
Question 4. Bio-accumulation can occur through direct surface absorption from aqueous medium in Zooplanktons.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 5. Size of organism is not related to bioaccumulation.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 6. Bio concentration factor is the concentration of a pollutant in an organism compared to that present in the environment.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 7. The persistence of the organic compounds depends on the presence of any metal.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 8. Which of the following present can be degraded by aerobic and anaerobic processes?
  1.    Hydrocarbons
  2.    Calcium
  3.    Magnesium
  4.    Nitrogen
 Discuss Question
Answer: Option A. -> Hydrocarbons
Answer: (a).Hydrocarbons
Question 9. Which of the following is faster process for degradation of xenobiotics?
  1.    Anaerobic degradation
  2.    Aerobic degradation
  3.    Reductive dihydroxylation
  4.    Hydration
 Discuss Question
Answer: Option B. -> Aerobic degradation
Answer: (b).Aerobic degradation
Question 10. Non-halogen based xenobiotics are converted into which of the following substance?
  1.    Catechol
  2.    Sulphur
  3.    Acrylamide
  4.    Acid
 Discuss Question
Answer: Option A. -> Catechol
Answer: (a).Catechol

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