MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Biotechnology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Phyto remediation technique is used to sequester pollutants in areas near the roots of plants. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which of the following is faster process for degradation of xenobiotics? |
| A. | Anaerobic degradation |
| B. | Aerobic degradation |
| C. | Reductive dihydroxylation |
| D. | Hydration |
| Answer» C. Reductive dihydroxylation | |
| 3. |
Which of the following process is not used to convert the hydrocarbons present in the organic compounds to central metabolic intermediates? |
| A. | Hydration |
| B. | Extraction |
| C. | Nitroreduction |
| D. | Reductive dehydroxylation |
| Answer» C. Nitroreduction | |
| 4. |
Which of the following present can be degraded by aerobic and anaerobic processes? |
| A. | Hydrocarbons |
| B. | Calcium |
| C. | Magnesium |
| D. | Nitrogen |
| Answer» B. Calcium | |
| 5. |
A period of adaptation is required before microbial degradation of xenobiotics. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Non-halogen based xenobiotics are converted into which of the following substance? |
| A. | Catechol |
| B. | Sulphur |
| C. | Acrylamide |
| D. | Acid |
| Answer» B. Sulphur | |
| 7. |
Which of the following is used in bio degradation of xenobiotics? |
| A. | Enzymes |
| B. | Chemicals |
| C. | Physical sorting |
| D. | PAHs |
| Answer» B. Chemicals | |
| 8. |
Which of the following compound gets accumulated as a result of degradation by the anaerobic microorganisms? |
| A. | Liquid Nitrogen |
| B. | Crude oil |
| C. | Oxygen |
| D. | Nitrogen |
| Answer» C. Oxygen | |
| 9. |
The persistence of the organic compounds depends on the presence of any metal. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Which of the following method leads to the accumulation of organic pollutants in the environment? |
| A. | Mine dumps |
| B. | Spills |
| C. | Culm dumps |
| D. | Mine drainage |
| Answer» C. Culm dumps | |
| 11. |
Bio concentration factor is the concentration of a pollutant in an organism compared to that present in the environment. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Which of the following compounds does not get degraded under any circumstances? |
| A. | Recalcitrant |
| B. | Persistent |
| C. | Mineralization |
| D. | Bioaccumulation |
| Answer» B. Persistent | |
| 13. |
Which of the following is not an organic pollutant? |
| A. | Insecticides |
| B. | Dioxins |
| C. | Polychlorinated biphenyls |
| D. | Oxygen |
| Answer» E. | |
| 14. |
Organic pollutants are persistent and cannot be degraded in the environment by natural processes. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
Which of the following is measured for a single population? |
| A. | Insecticides |
| B. | Dioxins |
| C. | Polychlorinated biphenyls |
| D. | Quantal response |
| Answer» E. | |
| 16. |
Which of the following can be the case of Quantal dose-response relationship? |
| A. | Binary |
| B. | Secondary |
| C. | Primary |
| D. | Tertiary |
| Answer» B. Secondary | |