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 cannot methylate mercury? |
| A. | <i>E. coli</i> |
| B. | <i>Bacillus</i> |
| C. | <i>Clostridium</i> |
| D. | Oxygen |
| Answer» E. | |
| 2. |
Intracellular machinery degrades metals. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Using microorganisms to extract metals from ores and mine waste is called as? |
| A. | Biomining |
| B. | Bioleaching |
| C. | Afforestation |
| D. | Hydrolysis |
| Answer» B. Bioleaching | |
| 4. |
What happens after death of the bacteria that has metal accumulation? |
| A. | Metal species released |
| B. | Metal species degraded |
| C. | Free metal species released |
| D. | Free metal species dissolves |
| Answer» B. Metal species degraded | |
| 5. |
A large number of bacteria can accumulate which metal? |
| A. | Cadmium |
| B. | Water |
| C. | Carbon dioxide |
| D. | Fungus |
| Answer» B. Water | |
| 6. |
Which of the following can stimulate chemolithotrophic growth in bacteria? |
| A. | Uranium |
| B. | Nickle |
| C. | Copper |
| D. | Cadmium |
| Answer» C. Copper | |
| 7. |
Which of the following is not considered toxic metals? |
| A. | Zinc |
| B. | Copper |
| C. | Uranium |
| D. | H<sub>2</sub>O |
| Answer» E. | |
| 8. |
Which of the following trace elements are not found in Escherichia coli? |
| A. | Copper |
| B. | Zinc |
| C. | Manganese |
| D. | Phytoremediation |
| Answer» E. | |
| 9. |
Which of the following binds to toxic metals? |
| A. | Extracellular ligands |
| B. | Intercellular ligands |
| C. | Intracellular ligands |
| D. | Integral proteins |
| Answer» B. Intercellular ligands | |
| 10. |
0.3 % of trace metals can be found in E. coli. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Which of the following functions is not important to assimilation of metals by bacteria? |
| A. | Detoxification |
| B. | Enzyme functions |
| C. | Physical properties of cell |
| D. | Resistance |
| Answer» E. | |
| 12. |
Which of the following is not a sub division of Metal Microbe Interactions? |
| A. | Intra cellular accumulation |
| B. | Transformation of metals |
| C. | Cell wall-metal interaction |
| D. | Hydrolysis |
| Answer» E. | |