Microbes in human welfare - fermentation industry, antibiotics, biogas, sewage treatment - Question Bank
1. Which antibiotic inhibits protein synthesis by binding to the 30S ribosomal subunit?
2. The 'sludge digester' in a sewage treatment plant primarily facilitates:
3. Which of the following is a notable use of *Bacillus thuringiensis*?
4. The process of removing dissolved organic matter and suspended solids in sewage treatment is mainly achieved by:
5. Which fungus is commonly used to produce the enzyme glucoamylase?
6. In biogas production, the initial breakdown of complex organic matter into simpler compounds is carried out by:
7. The antibiotic 'tetracycline' is produced by:
8. Which of the following is a common example of a fermented beverage?
9. The 'trickling filter' is a method used in which stage of sewage treatment?
10. Which enzyme, produced by microbes, is used to break down starch in industries?
11. The term 'biopesticides' refers to pesticides derived from:
12. Which of the following is an example of a fermented dairy product?
13. In the context of biogas production, 'methanogens' are:
14. The antibiotic 'chloramphenicol' was originally isolated from:
15. Which organism is used to produce 'tempeh', a fermented soybean food?
16. The primary goal of sewage treatment is to reduce the:
17. Which of the following is a broad-spectrum antibiotic?
18. The 'secondary sludge' from the activated sludge process can be used as:
19. Which microbe is used in the production of soy sauce?
20. The 'digester' in a biogas plant is designed for:
21. Which of the following antibiotics inhibits bacterial cell wall synthesis?
22. The process of removing suspended solids from sewage in the primary treatment stage is called:
23. Which is the primary organism used in the industrial production of ethanol for fuel and beverages?
24. The process of converting organic matter into simpler inorganic substances by microbes is called:
25. Which antibiotic is produced by an actinomycete, *Streptomyces griseus*?
26. The characteristic holes in Swiss cheese are due to the production of gas by which bacterium?
27. Which of the following is a common application of 'Single Cell Protein' (SCP)?
28. The 'activated sludge' in sewage treatment is rich in:
29. Which microbe is used in the production of citric acid?
30. In a biogas plant, the slurry of dung is mixed with water and then subjected to:
31. The antibiotic 'erythromycin' is derived from which group of microorganisms?
32. Which of the following is NOT a product of fermentation used in food industry?
33. The term 'BOD' (Biochemical Oxygen Demand) in sewage treatment refers to the amount of:
34. Which type of microorganism is primarily responsible for the production of enzymes like amylase and lipase used in industries?
35. The 'Gobar Gas' plant utilizes:
36. Which fungus is used to produce the antibiotic penicillin?
37. What is the main function of the secondary treatment stage in sewage processing?
38. Which of the following gases is produced in significant amounts during the anaerobic digestion in a biogas plant?
39. The antibiotic 'streptomycin' was discovered by:
40. Which microbe is responsible for the characteristic flavour and aroma of cheese?
41. The beverage 'Toddy' is traditionally fermented using:
42. Which organism is widely used as a 'single-cell protein' (SCP) source?
43. In the activated sludge process of sewage treatment, flocs are formed by:
44. The primary role of microbes in sewage treatment is to:
45. Which group of microorganisms is essential for the anaerobic digestion of organic matter to produce biogas?
46. Biogas is a mixture primarily composed of:
47. Alexander Fleming is credited with the discovery of which antibiotic?
48. Which of the following is a common source for producing antibiotics?
49. The process by which yeast converts sugars into ethanol and carbon dioxide is called:
50. Which bacterium is primarily used in the production of yogurt from milk?