Q. No.Conversion of milk to curd improves its nutritional value by increasing the amount of
1. Vitamin B12
2. Vitamin A
3. Vitamin D
4. Vitamin E
2. Vitamin A
3. Vitamin D
4. Vitamin E
BOD of waste water is estimated by measuring the amount of:
1. total organic matter
2. biodegradable organic matter
3. oxygen evolution
4. oxygen consumption.
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What would happen if oxygen availability to activated sludge flocs is reduced?
| 1. | It will slow down the rate of degradation of organic matter. |
| 2. | The center of flocs will become anoxic, which would cause the death of bacteria and eventually breakage of flocs. |
| 3. | Flocs would increase in size as anaerobic bacteria would grow around flocs. |
| 4. | Protozoa would grow in large numbers. |
What important nutrient is added to the curd that is produced with the help of LAB [Lactic Acid Bacteria]?
| 1. | Vitamin A | 2. | Cyanocobalamin |
| 3. | Essential amino acids | 4. | Essential fatty acids |
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The large holes in ‘Swiss Cheese’ are due to the production of a large amount of carbon dioxide by:
1. Propionibacterium shermanii
2. Methylophilus methylotrophus
3. Penicillium roqueforti
4. Penicillium camemberti
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Which of the following alcoholic drinks are produced without distillation?
1. Whiskey and Brandy
2. Brandy and Rum
3. Wine and Beer
4. Wine and Brandy
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The full potential of penicillin as an antibiotic was established by:
| 1. | Alexander Fleming | 2. | Florey and Chain |
| 3. | Avery and McCarty | 4. | Hershey and Chase |
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Which fungus is an important source for the production of citric acid?
1. Aspergillus niger
2. Aspergillus flavus
3. Trichoderma polysporum
4. Trichoderma harzianum
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A source of a ‘clot buster’ enzyme used in patients of CAD is the bacterium:
1. Staphylococcus aureus
2. Streptomyces griseus
3. Pseudomonas putida
4. Streptococcus pyogenes
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Statins produced by the yeast Monascuspurpureus have been commercialized as:
| 1. | hormone replacement therapy for menopausal women. |
| 2. | increasing receptor sensitivity in type II diabetes mellitus. |
| 3. | a clotting factor for the treatment of Hemophilia A. |
| 4. | blood-cholesterol lowering agent. |
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