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MCQs

Total Questions : 116 | Page 9 of 12 pages
Question 81. . Which of the following organism is utilized for the production of D-L-alanine?
  1.    Microbacterium ammoniaphilum
  2.    Brevibacterium flavum
  3.    Arthrobacter paraffineus
  4.    C. glutamicum
 Discuss Question
Answer: Option A. -> Microbacterium ammoniaphilum
Question 82. . The submerged fermentation of vinegar utilizes special fermentor designs known as
  1.    acetator
  2.    cavitator
  3.    packed vinegar generator
  4.    both (a) and (b)
 Discuss Question
Answer: Option D. -> both (a) and (b)
Question 83. . Which of the following are true for the heterofermentative microorganism producing lactic acid?
  1.    Only trace amounts of end products other than lactic acid
  2.    Some lactic acid with carbon dioxide, ethyl alcohol, acetic acid and trace amount of few other products
  3.    They are used for commercial lactic acid production
  4.    None of the above
 Discuss Question
Answer: Option B. -> Some lactic acid with carbon dioxide, ethyl alcohol, acetic acid and trace amount of few other products
Question 84. . The aerated submerged bacterial fermentation to produce vitamin B12 employs strains of
  1.    Propionibacterium
  2.    Pseudomonas
  3.    Acetobacter
  4.    both (a) and (b)
 Discuss Question
Answer: Option D. -> both (a) and (b)
Question 85. . Rickes et al. recovered active crystalline vitamin B12 from the culture of
  1.    Streptomyces griseus
  2.    Bacillus megaterium
  3.    Streptomyces olivaceus
  4.    Streptomyces lactis
 Discuss Question
Answer: Option A. -> Streptomyces griseus
Question 86. . Which of the following is a heterofermentative micro-organism?
  1.    Leuconostoc mesenteroides
  2.    Lactobacillus delbrueckii
  3.    Lactobacillus bulgaricus
  4.    Lactobacillus pentose
 Discuss Question
Answer: Option B. -> Lactobacillus delbrueckii
Question 87. . Riboflavin is a by-product of __________ fermentation carried out by Clostridium spp.
  1.    citric acid
  2.    acetone butanol
  3.    acetone butanol
  4.    ethanol
 Discuss Question
Answer: Option B. -> acetone butanol
Question 88. . 
Which of the following micro organism utilizes lactose as a carbon source in production of lactic acid from whey media?
  1.    Lactobacillus bulgaricus
  2.    Lactobacillus delbrueckii
  3.    Lactobacillus pentosus
  4.    Leuconostoc mesenteroides
 Discuss Question
Answer: Option A. -> Lactobacillus bulgaricus
Question 89. . The organism which utilizes the pentose of sulphite waste liquor for lactic acid production is
  1.    Streptococcus lactis
  2.    Lactobacillus bulgaricus
  3.    Lactobacillus casei
  4.    Lactobacillus pentosus
 Discuss Question
Answer: Option D. -> Lactobacillus pentosus
Question 90. . The rapid process of microbial oxidation developed to produce acetic acid from ethanol at Schutzenbach, Germany is also known as
  1.    packed generator
  2.    trickle method
  3.    Orleans process
  4.    both (a) and (b)
 Discuss Question
Answer: Option D. -> both (a) and (b)

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