1. The main product of glycolysis under aerobic conditions is
- Pyruvate
- Lactate
- None of these
- Both a and b
[expand title=”Show Answer”]Answer: Pyruvate
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2. The protein moiety of an enzyme is known as
- Holo enzyme
- Apo enzyme
- Co enzyme
- Enzyme
[expand title=”Show Answer”]Answer: Apo enzyme
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3. Yeast extract is an excellent source of
- A Vitamin
- Proteins
- B Vitamin
- Carbohydrates
[expand title=”Show Answer”]Answer: B Vitamin
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4. Example of anaerobic medium
- Wilson blair medium
- Mac conkey broth
- Robertson’s cooked meat medium
- EMB agar
[expand title=”Show Answer”]Answer: Robertson’s cooked meat medium
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5. Biological Oxygen Demand (BOD) is a measure of:
- Industrial wastes poured into water bodies
- Extent to which water is polluted with organic compounds
- Amount of carbon monoxide inseparably combined with haemoglobin
- Amount of oxygen needed by green plants during night
[expand title=”Show Answer”]Answer: Industrial wastes poured into water bodies
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6. An example of competitive inhibition of an enzyme is the inhibition of
- Succinic dehydrogenase by malonic acid
- Cytochrome oxidase by cyanide
- Hexokinase by glucose-6-phosphate
- Carbonic anhydrase by carbon dioxide
[expand title=”Show Answer”]Answer: Succinic dehydrogenase by malonic acid
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7. The following organisms have been proposed as sources of single cell protein
- Bacteria
- Yeasts
- Algae
- All the three
[expand title=”Show Answer”]Answer: All the three
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8. Nitrites are oxidized to nitrates by a microorganism
- Nitrosomonas
- Nitrosococcus
- Nitrobacter
- Azatobacter
[expand title=”Show Answer”]Answer: Nitrobacter
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9. The major constituents in agar are
- Fats
- Aminoacids
- Polysaccharides
- Polypeptides
[expand title=”Show Answer”]Answer: Polysaccharides
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