Q. No.Which of the following in sewage treatment removes suspended solids?
1. Secondary treatment
2. Primary treatment
3. Sludge treatment
4. Tertiary treatment
2. Vitamin A
3. Vitamin B12
4. Vitamin E
| Column I | Column II | ||
| A. | Citric acid | 1. | Trichoderma |
| B. | Cyclosporin | 2. | Clostridium |
| C. | Statins | 3. | Aspergillus |
| D. | Butyric Acid | 4. | Monascus |
1. A-3, B-1, C-2, D-4
2. A-3, B-1, C-4, D-2
3. A-1, B-4, C-2, D-3
4. A-3, B-4, C-1, D-2
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
Which of the following is wrongly matched in the given table?
| Microbe | Product | Application | |
| 1. | Monascus purpureus | Statins | Lowering of blood cholesterol |
| 2. | Streptococcus | Streptokinase | Removal of clot from blood vessel |
| 3. | Clostridium butylicum | Lipase | Removal of oil stains |
| 4. | Trichoderma polysporum | Cyclosporin-A | Immunosuppressive |
Match the following list of microbes and what they are used for:
| A. | Saccharomyces cerevisiae | 1. | Production of immunosuppressive agents |
| B. | Monascus purpureus | 2. | Ripening of Swiss cheese |
| C. | Trichoderma polysporum | 3. | Commercial production of ethanol |
| D. | Propionibacterium shermanii | 4. | Production of blood-cholesterol-lowering agents |
1. A-3, B-4, C-1, D-2
2. A-4, B-3, C-2, D-1
3. A-4, B-2, C-1, D-3
4. A-3, B-1, C-4, D-2
A high value of BOD (Biochemical Oxygen Demand) indicates that:
| 1. | water is pure |
| 2. | water is highly polluted |
| 3. | water is less polluted |
| 4. | consumption of organic matter in the water is higher by the microbes |
What gases are produced in anaerobic sludge digesters?
1. Methane and CO2
2. Methane, Hydrogen Sulphide and CO2
3. Methane, Hydrogen Sulphide and CO
4. Hydrogen Sulphide and CO2
A good producer of citric acid is:
1. Pseudomonas
2. Clostridium
3. Saccharomyces
4. Aspergillus
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