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Total Questions : 52 | Page
1
of 6 pages
Question 1.
Which of the following factors doesn’t influence the Dose response relationship?
Membrane permeability rate
Quantifying response
Exposure time
Exposure route
See Solution
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?
Toxification
Sodium
Potassium
Biochemical degradation
See Solution
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?
Membrane permeability rate
Elimination
Rate of active transport
Rate of active transport
See Solution
Discuss Question
Answer: Option B. ->
Elimination
Answer:
(b).
Elimination
Question 4.
Bio-accumulation can occur through direct surface absorption from aqueous medium in Zooplanktons.
True
False
May be True or False
Can't say
See Solution
Discuss Question
Answer: Option A. ->
True
Answer:
(a).
True
Question 5.
Size of organism is not related to bioaccumulation.
True
False
May be True or False
Can't say
See Solution
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.
True
False
May be True or False
Can't say
See Solution
Discuss Question
Answer: Option A. ->
True
Answer:
(a).
True
Question 7.
The persistence of the organic compounds depends on the presence of any metal.
True
False
May be True or False
Can't say
See Solution
Discuss Question
Answer: Option B. ->
False
Answer:
(b).
False
Question 8.
Which of the following present can be degraded by aerobic and anaerobic processes?
Hydrocarbons
Calcium
Magnesium
Nitrogen
See Solution
Discuss Question
Answer: Option A. ->
Hydrocarbons
Answer:
(a).
Hydrocarbons
Question 9.
Which of the following is faster process for degradation of xenobiotics?
Anaerobic degradation
Aerobic degradation
Reductive dihydroxylation
Hydration
See Solution
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?
Catechol
Sulphur
Acrylamide
Acid
See Solution
Discuss Question
Answer: Option A. ->
Catechol
Answer:
(a).
Catechol
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