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Microbes in Human Welfare

Short Answer Type

41. What is Cyclosporin A ? What is its importance ?

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42. Define statins. What is the role with respect to cholesterol ?

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43. How do antibiotics act ?

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44. List two varieties of cheese and write the names of microbes used.

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45. Name two alcoholic drinks produced in each of following ways

(i) With distillation (ii) without distillation.

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One Word Answers

46. What are the large vessels in which microbes are grown on an industrial scale called?

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Short Answer Type

47. Give three uses of enzymes obtained from microbes.

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48. Name the organic acids produced industrially by microorganisms.

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49. What is sewage ? In which way can this be harmful ?

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50. What is the key difference between primary and secondary sewage treatment ?

Primary treatment of wastes involves the physical removal of particles. It involves methods like sedimentation and fitration. It is comparitively less expensive

Secondary treatment of waste involves the biological removal of dissolved organic matter. It involves the use of microbes. It is an expensive process.

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