MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Biotechnology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of following is not a focus in conversing microbial communities to biofuel? |
| A. | Substrate Flexibility |
| B. | High productivity |
| C. | Higher number of products in one process |
| D. | Tolerance to stress |
| Answer» D. Tolerance to stress | |
| 2. |
Which of the following is an undesirable microbe in endogenic silage microorganism with simple sugar as the substrate? |
| A. | Homolactic |
| B. | Propionic acid bacteria |
| C. | Heterolactic |
| D. | Yeast |
| Answer» E. | |
| 3. |
Which has the correct descending order of Inhibitory Capacity? |
| A. | Propionic > Butyric > Acetic > Lactic |
| B. | Propionic > Acetic > Butyric > Lactic |
| C. | Lactic > Butyric > Acetic > Propionic |
| D. | Lactic > Acetic > Butyric > Propionic |
| Answer» B. Propionic > Acetic > Butyric > Lactic | |
| 4. |
Which of these bacteria is a redox mediator in microbial fuel cells? |
| A. | Pseudomonas aeruginosa |
| B. | Geothrix ferementans |
| C. | Desulfuromonas acetoxidans |
| D. | Shewanella oneidenensis |
| Answer» C. Desulfuromonas acetoxidans | |
| 5. |
Which of these are acetotropic methanogens? |
| A. | Methanoculleus thermophilicus, Methanosphaera stadtmanii |
| B. | Methanosarcina thermophila, Methanosaeta concilii |
| C. | Methanosarcina thermophila, Methanosphaera stadtmanii |
| D. | Methanoculleus thermophilicus, Methanosarcina thermophila |
| Answer» C. Methanosarcina thermophila, Methanosphaera stadtmanii | |
| 6. |
Which of these is not a direct treatment on hemicellulose? |
| A. | Cellulase production |
| B. | Hexose fermentation |
| C. | Syngas fermentation |
| D. | Pentose fermentation |
| Answer» D. Pentose fermentation | |
| 7. |
Which of these is not one of the main biomass feedstocks? |
| A. | Sugar |
| B. | Starch |
| C. | Lignocellulose |
| D. | Hemicellulose |
| Answer» E. | |
| 8. |
Which fatty acids can’t be used as abiofuel directly? |
| A. | Ionic nature of carbonyl groups |
| B. | Hydrophobic nature |
| C. | If degree of saturation is high |
| D. | Variation of length |
| Answer» B. Hydrophobic nature | |
| 9. |
Why is S. cerevisiae is used to derive butanol? |
| A. | It has high growth rate |
| B. | It can overcome toxicity |
| C. | Changes its own cell wall composition in response to toxicity |
| D. | High tolerance to butanol |
| Answer» E. | |