MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
Which of the following bacteria metabolizes cresols? |
| A. | Pesticides |
| B. | Pseudomonads |
| C. | Fungi |
| D. | Algae |
| Answer» C. Fungi | |
| 2. |
Herbicides can undergo microbial dealkylation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following can have more than one alkoxyl groups? |
| A. | Pesticides |
| B. | Distilled water |
| C. | Coffee |
| D. | Acetone |
| Answer» B. Distilled water | |
| 4. |
Pesticides with more than one alkoxyl group cannot be de-alkylated. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Which of the following technique is used to metabolize cresols? |
| A. | Activated Alumina |
| B. | Microbial dealkylation |
| C. | Reverse osmosis |
| D. | Chemical precipitation |
| Answer» C. Reverse osmosis | |
| 6. |
Which of the following is not a method of dealkylation using microorganisms? |
| A. | Adsorption |
| B. | Chemical precipitation |
| C. | Microbial demethylations |
| D. | Reverse osmosis |
| Answer» D. Reverse osmosis | |
| 7. |
How fungi help in de-alkylation? |
| A. | Oxidation |
| B. | Reduction |
| C. | Assimilation |
| D. | Accumulation |
| Answer» B. Reduction | |
| 8. |
Which of the following microorganisms is involved in dealkylation process? |
| A. | Birds |
| B. | Fungi |
| C. | Human |
| D. | Vertebrates |
| Answer» C. Human | |
| 9. |
How does microbial arbitrated removal of alkyl group from nitrogen atom takes place? |
| A. | Hydroxy-methyl intermediates |
| B. | Intercellular ligands |
| C. | Extracellular ligands |
| D. | Integral proteins |
| Answer» B. Intercellular ligands | |
| 10. |
Dealkylation is caused as a co-metabolism process in fungi. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Why is S-dealkylation not observed? |
| A. | Greater inclination for oxidation of Sulphur |
| B. | Lesser inclination for oxidation of Sulphur |
| C. | Lesser inclination for reduction of Sulphur |
| D. | Greater inclination for reduction of Sulphur |
| Answer» B. Lesser inclination for oxidation of Sulphur | |
| 12. |
Which of the following groups can be de-alkylated by microorganisms? |
| A. | N-linked alkylated groups |
| B. | C-linked alkylated groups |
| C. | F-linked alkylated groups |
| D. | G-linked alkylated groups |
| Answer» B. C-linked alkylated groups | |