Question
In the context of solving pollution problems, what is/are the advantage/advantages of bioremediation technique?
1. It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature.
2. Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms
3. Genetic engineering can be used to create microorganism specifically designed for bioremediation
Select the correct answer using the codes given below
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer:
C
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Explanation:
The correct answer is (c) 1 and 3 only.
It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature: Bioremediation is a technique that utilizes microorganisms or their enzymes to break down pollutants into less harmful substances. It enhances the natural biodegradation process that occurs in the environment, making it an advantageous method for cleaning up pollution.
Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms: This statement is incorrect. While bioremediation can be effective in treating certain types of contaminants, such as organic compounds and some metals, it may not be equally effective for all heavy metals. Some heavy metals, like cadmium and lead, can be more challenging to remediate using microorganisms alone.
Genetic engineering can be used to create microorganisms specifically designed for bioremediation: This statement is correct. Genetic engineering techniques can be employed to modify microorganisms and create strains that are more efficient in bioremediation. By introducing specific genes or enhancing certain metabolic pathways, scientists can design microorganisms that have enhanced capabilities to degrade pollutants, making bioremediation more effective.