MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not an inhibitor used in fermentation? |
| A. | Bromide |
| B. | Ethionine |
| C. | Alkali metal |
| D. | Alkali earth metal |
| Answer» E. | |
| 2. |
Maltose is inducer for an enzyme ___________ |
| A. | Pectinases |
| B. | Proteases |
| C. | Pullulanase |
| D. | Nitralase |
| Answer» D. Nitralase | |
| 3. |
In which of the following way, the medium may not influence oxygen availability? |
| A. | Fast metabolism |
| B. | Rheology |
| C. | Antifoams |
| D. | Elicitors |
| Answer» E. | |
| 4. |
Which of the following acts as α- Amylase inducer? |
| A. | Yeast mannans |
| B. | Starch |
| C. | Cellulose |
| D. | Pectin |
| Answer» C. Cellulose | |
| 5. |
The fermentation media should not allow high yield of undesired products. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
The fermentation media should be free from _________ |
| A. | Precursors |
| B. | Inhibitors |
| C. | Toxicity |
| D. | Defoamers |
| Answer» D. Defoamers | |
| 7. |
The antifoaming agents should not cause any problems in the extraction and purification of the product. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of the following is not a defoamer? |
| A. | Amide waxes |
| B. | Oleic acid |
| C. | Organic phosphates |
| D. | Propanoic acid |
| Answer» E. | |
| 9. |
Who recognized the foaming patterns in fermentation? |
| A. | Lee |
| B. | Hall |
| C. | Tyman |
| D. | Solomons |
| Answer» C. Tyman | |
| 10. |
Which of the following is not a property of antifoams? |
| A. | It should be active at low concentrations |
| B. | It should have fast action on an existing foam |
| C. | It should be non-toxic to micro-organism |
| D. | It need not be sterilized |
| Answer» E. | |
| 11. |
Cyanide is used as a precursor for production of ________ |
| A. | Carotenoids |
| B. | Vitamin B12 |
| C. | Riboflavin |
| D. | Vitamin B2 |
| Answer» C. Riboflavin | |
| 12. |
Which of the following is used as the precursor of preparation of Cyclosporin C? |
| A. | L – Threonine |
| B. | Cyanides |
| C. | Phenoxy acetic acid |
| D. | D- Threonine |
| Answer» B. Cyanides | |
| 13. |
Which of the following is used in the preparation of Nikkomycins? |
| A. | Streptomyces organonensis |
| B. | Penicillium chrysogenum |
| C. | Streptomyces tendae |
| D. | Lactobacillus bulgaricus |
| Answer» D. Lactobacillus bulgaricus | |
| 14. |
Which of the following is used as the precursor for Griseofulvin production? |
| A. | Cyanides |
| B. | Chloride |
| C. | β- Iononones |
| D. | Anthranilic acid |
| Answer» C. β- Iononones | |
| 15. |
Which of the following additives are required for a better yield of the desired product? |
| A. | Precursors |
| B. | Regulators |
| C. | Inhibitors |
| D. | Growth Factors |
| Answer» B. Regulators | |