Which of the following is correctly matched for the product produced by them?             

1. Methanobacterium : Lactic acid
2. Penicillium notatum : Acetic acid
3. Saccharomyces cerevisiae : Ethanol
4. Acetobacter aceti : Antibiotics

Subtopic:  Industrial Products, Beverages & Antibiotics |
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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 

Subtopic:  Microbes in Household Products |
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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.

Subtopic:  Microbes in Production of Biogas |
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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.
Subtopic:  Microbes in Sewage Treatment |
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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
Subtopic:  Industrial Products, Beverages & Antibiotics |
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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

Subtopic:  Industrial Products, Beverages & Antibiotics | Microbes in Sewage Treatment |
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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

Subtopic:  Industrial Products, Beverages & Antibiotics | Chemistry of Fermented Beverages |
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The full potential of penicillin as an antibiotic was established by:

1.Alexander Fleming2.Florey and Chain
3.Avery and McCarty4.Hershey and Chase

Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
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Which fungus is an important source for the production of citric acid?

1. Aspergillus niger 2. Aspergillus flavus
3. Trichodermapolysporum 4. Trichodermaharzianum
Subtopic:  Industrial Products, Beverages & Antibiotics | Chemistry of Fermented Beverages |
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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
Subtopic:  Chemicals, Enzymes & Other Bioactive Molecules |
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