UPSC Exam > UPSC Questions > Consider the following statements:1. In bioma...
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Consider the following statements:
1. In biomagnification there is an increase in concentration of a pollutant from one link in a food chain to another.
2. For biomagnification to occur, the pollutant must be soluble in fats.
3. If a pollutant is not active biologically it will not biomagnify.
Which of these statements is/are correct?
- a)1 and 2 only
- b)2 only
- c)1 and 3 Only
- d)All of the above
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider the following statements:1. In biomagnification there is an i...
- In bioaccumulation, there is an increase in the concentration of a pollutant from the environment to the first organism in a food chain. In biomagnification, there is an increase in the concentration of a pollutant from one link in a food chain to another.
- For biomagnification to occur, the pollutant must be long-lived, mobile, soluble infants', biologically active. If the pollutant is soluble in water, it will be excreted by the organism. Pollutants that dissolve in fats, however, may be retained for a long time. E.g. DDT
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Most Upvoted Answer
Consider the following statements:1. In biomagnification there is an i...
Explanation:
Biomagnification is the accumulation of pollutants in higher levels of a food chain. The correct statements regarding biomagnification are:
1. In biomagnification, there is an increase in concentration of a pollutant from one link in a food chain to another. This statement is true because as you move up the food chain, the concentration of pollutants increases due to the accumulation of pollutants in the fatty tissues of the organisms.
2. For biomagnification to occur, the pollutant must be soluble in fats. This statement is also true because pollutants that are not soluble in fats cannot be accumulated in the fatty tissues of the organisms and therefore cannot biomagnify.
3. If a pollutant is not active biologically, it will not biomagnify. This statement is false because even if a pollutant is not active biologically, it can still biomagnify if it is soluble in fats and can accumulate in the fatty tissues of the organisms.
Therefore, the correct statements are 1 and 2 only, which is option A.
Biomagnification is the accumulation of pollutants in higher levels of a food chain. The correct statements regarding biomagnification are:
1. In biomagnification, there is an increase in concentration of a pollutant from one link in a food chain to another. This statement is true because as you move up the food chain, the concentration of pollutants increases due to the accumulation of pollutants in the fatty tissues of the organisms.
2. For biomagnification to occur, the pollutant must be soluble in fats. This statement is also true because pollutants that are not soluble in fats cannot be accumulated in the fatty tissues of the organisms and therefore cannot biomagnify.
3. If a pollutant is not active biologically, it will not biomagnify. This statement is false because even if a pollutant is not active biologically, it can still biomagnify if it is soluble in fats and can accumulate in the fatty tissues of the organisms.
Therefore, the correct statements are 1 and 2 only, which is option A.
Community Answer
Consider the following statements:1. In biomagnification there is an i...
Explanation:
Biomagnification is the process by which the concentration of a pollutant increases as it passes through the food chain. Let's examine each statement to determine its accuracy:
1. In biomagnification there is an increase in concentration of a pollutant from one link in a food chain to another.
This statement is true. As a pollutant moves up the food chain, it becomes more concentrated in the bodies of organisms at higher trophic levels. This is because each organism consumes many smaller organisms, each of which has accumulated some of the pollutant.
2. For biomagnification to occur, the pollutant must be soluble in fats.
This statement is also true. Pollutants that are not soluble in fats will not accumulate in the fatty tissues of organisms, so they will not be biomagnified. Only pollutants that are fat-soluble can be biomagnified.
3. If a pollutant is not active biologically it will not biomagnify.
This statement is false. A pollutant does not have to be biologically active to biomagnify. In fact, sometimes the most dangerous pollutants are those that are not biologically active, as they can accumulate in the environment and persist for long periods of time.
Therefore, the correct answer is option 'A' - statements 1 and 2 are true, while statement 3 is false.
Biomagnification is the process by which the concentration of a pollutant increases as it passes through the food chain. Let's examine each statement to determine its accuracy:
1. In biomagnification there is an increase in concentration of a pollutant from one link in a food chain to another.
This statement is true. As a pollutant moves up the food chain, it becomes more concentrated in the bodies of organisms at higher trophic levels. This is because each organism consumes many smaller organisms, each of which has accumulated some of the pollutant.
2. For biomagnification to occur, the pollutant must be soluble in fats.
This statement is also true. Pollutants that are not soluble in fats will not accumulate in the fatty tissues of organisms, so they will not be biomagnified. Only pollutants that are fat-soluble can be biomagnified.
3. If a pollutant is not active biologically it will not biomagnify.
This statement is false. A pollutant does not have to be biologically active to biomagnify. In fact, sometimes the most dangerous pollutants are those that are not biologically active, as they can accumulate in the environment and persist for long periods of time.
Therefore, the correct answer is option 'A' - statements 1 and 2 are true, while statement 3 is false.
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Consider the following statements:1. In biomagnification there is an increase in concentration of a pollutant from one link in a food chain to another.2. For biomagnification to occur, the pollutant must be soluble in fats.3. If a pollutant is not active biologically it will not biomagnify.Which of these statements is/are correct?a)1 and 2 onlyb)2 onlyc)1 and 3 Onlyd)All of the aboveCorrect answer is option 'A'. Can you explain this answer?
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