Q. No.
Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?
1. Aspergillus niger – citric acid
2. Yeast – statins
3. Acetobacter aceti – acetic acid
4. Clostridium butylicum – lactic acid
Read the following statement having two blanks (A and B):
''A drug used for ______ (A)___ patients is obtained from a species of the organism ______ (B)___ ''. The one correct option for the two blanks is:
| Blank-A | Blank-B | |
| 1. | AIDS | Pseudomonas |
| 2. | Heart | Penicillium |
| 3. | Organ-transplant | Trichoderma |
| 4. | Swine flu | Monascus |
Domestic sewage in large cities:
| 1. | is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plant (STPs) |
| 2. | when treated in STPs, does not require the aeration step as the sewage contains adequate oxygen |
| 3. | has very high amounts of suspended solids and dissolved salts |
| 4. | has a high BOD as it contains both aerobic and anaerobic bacteria |
Bacillus thuringiensis (Bt) strains have been used for designing novel:
1. Bioinsecticidal plants
2. Bio-mineralization processes
3. Biofertilizers
4. Bio-metallurgical techniques
Which of the following yields citric acid?
1. Penicillium citrinum
2. Aspergillus niger
3. Saccharomyces
4. Azospirillium
Saccharomyces cerevisiae is used in the formation of:
1. Ethanol
2. Methanol
3. Acetic acid
4. Antibiotics
The dough kept overnight in warm weather becomes soft and spongy because of:
1. Fermentation
2. Cohesion
3. Osmosis
4. Absorption of carbon dioxide from the atmosphere
Which one of the following pairs is not correctly matched:
1. Serratia – Drug addiction
2. Spirulina – Single-cell protein
3. Rhizobium – Biofertilizer
4. Streptomyces – Antibiotic
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