Common Industrial Micro Biology Objective Type Questions And Answers

41. If the microorganisms are allowed to nutrient medium is called
a. Submerged fermentation
b. Surface fermentation
c. Dual fermentation
d. All of these
Ans: B

42. Submerged fermentations are
a. Batch fermentation
b. Continuous fermentation
c. Both a and b
d. None of these
Ans: C

43. Batch fermentation is also called
a. Closed system
b. Open system
c. Fed-batch system
d. None of these
Ans: A

44. If more than one microorganism is used to obtain the required product, that type of fermentation is called
a. Batch
b. Continuous
c. Dual
d. Fed-batch
Ans: C

45. L. lysine is produced from
a. Coryne bacterium glutamicum
b. Corynebacterium sps.
c. Mycobacterium sps.
d. None of these
Ans: A

46. Methods used to get immobilized enzymes:
a. Adsorption
b. Encapsulation
c. Covalent bonding
d. All of these
Ans: D

47. Raw-material used for the production of alcohol is
a. Molasses
b. Starch
c. Sulphite waste water
d. All of these
Ans: D

48. Microorganisms used for alcohol production
a. Saccharomyces sereviceae
b. Bacillus subtilis
c. Penicillium chrysogenum
d. None of these
Ans: A

49. For streptomycin production the microorganisms required are
a. Streptomyces griseus
b. Streptomyces niger
c. Saccharomyces cereviceae
d. All of these
Ans: A

50. The by-product during streptomycin production is
a. Vitamin A
b. Proline
c. Vitamin B12
d. None of these
Ans: C

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