MCQOPTIONS
Saved Bookmarks
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. |
The symbiosis relationship between two microorganisms with different metabolism which leads to short-distance metabolite transfer is called as __________ |
| A. | syntrophism |
| B. | catabolism |
| C. | anabolism |
| D. | mutualism |
| Answer» B. catabolism | |
| 2. |
At which pH does the protein precipitate? |
| A. | 1 |
| B. | 7 |
| C. | 8 |
| D. | 9 |
| Answer» B. 7 | |
| 3. |
The rate of cellulose degradation depends on cellulose itself. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Which of the following methods is not included in the anaerobic degradation of cellulose? |
| A. | Hydrolytic |
| B. | Acetogenic |
| C. | Fermentative |
| D. | Pasteurization |
| Answer» E. | |
| 5. |
Which of the following compounds is not produced during acetogenic stage? |
| A. | Acetate |
| B. | Carbon dioxide |
| C. | Hydrogen |
| D. | Dioxins |
| Answer» E. | |
| 6. |
Molecular hydrogen is produced during different stages of aerobic reaction. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Which the following bacteria can produce hydrogen from carbohydrates? |
| A. | <em>Clostridium sp.</em> |
| B. | <em>Syntrophobacter sp.</em> |
| C. | <em>Syntrophobacter wolinii</em> |
| D. | <em>Syntrophomonas wolfei</em> |
| Answer» B. <em>Syntrophobacter sp.</em> | |
| 8. |
Fatty acid isomers are usually derived from degradation of amino acids. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
In anaerobic conditions, the biopolymers cannot be degraded by which of the following process? |
| A. | Depolymerisation |
| B. | Fermentation |
| C. | Reduction of fatty acid |
| D. | Biogas formation |
| Answer» D. Biogas formation | |
| 10. |
Which of the following bacteria are used to degrade the fermented products? |
| A. | Methanogenic bacteria |
| B. | Sulphate reducing bacteria |
| C. | Carbon degrading bacteria |
| D. | Hydrogen producing bacteria |
| Answer» B. Sulphate reducing bacteria | |
| 11. |
In absence of inorganic electron acceptor, the oxidized metabolite is reduced to ___________ |
| A. | Lactate |
| B. | Oxygen |
| C. | Sodium |
| D. | Water |
| Answer» B. Oxygen | |
| 12. |
The places where the molecular oxygen is deficient but the organic matter content is high, degradation occurs __________ |
| A. | anoxically |
| B. | in presence of oxygen |
| C. | in presence of water |
| D. | in presence of organic pollutants |
| Answer» B. in presence of oxygen | |