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MCQs

Total Questions : 212 | Page 11 of 22 pages
Question 101. Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________
  1.    carbohydrates
  2.    proteins
  3.    vitamins
  4.    fats
 Discuss Question
Answer: Option B. -> proteins
Answer: (b).proteins
Question 102. Yeast-cell crops harvested from the vats is used to produce which of the following compounds?
  1.    alcoholic beverages
  2.    enzymes
  3.    antibiotics
  4.    organic acids
 Discuss Question
Answer: Option A. -> alcoholic beverages
Answer: (a).alcoholic beverages
Question 103. How many tons of protein can be produced by algae grown in pond in a year?
  1.    1000
  2.    1
  3.    50
  4.    20
 Discuss Question
Answer: Option D. -> 20
Answer: (d).20
Question 104. What is the range of protein content in yeast cells?
  1.    69%
  2.    12-15%
  3.    20-40%
  4.    40-50%
 Discuss Question
Answer: Option D. -> 40-50%
Answer: (d).40-50%
Question 105. Which of the following microorganism have a high vitamin content?
  1.    bacteria
  2.    yeast
  3.    algae
  4.    protozoa
 Discuss Question
Answer: Option B. -> yeast
Answer: (b).yeast
Question 106. What is an anaerobic digester?
  1.    New diet drink
  2.    Microbe that eats hazardous waste
  3.    Method to convert agricultural waste into a biogas
  4.    All of the above
 Discuss Question
Answer: Option C. -> Method to convert agricultural waste into a biogas
Answer: (c).Method to convert agricultural waste into a biogas
Question 107. Biomass
  1.    provides the U.S. with about 50% of its energy
  2.    consists largely of wood, animal, and human waste
  3.    is unlikely to be a major source of energy globally
  4.    offers the consumer high quality energy with low environmental impact
 Discuss Question
Answer: Option B. -> consists largely of wood, animal, and human waste
Answer: (b).consists largely of wood, animal, and human waste
Question 108. Iron bacteria can produce
  1.    slime
  2.    undesirable odors and tastes
  3.    both (a) and (b)
  4.    extreme acidity
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)
Question 109. The use of microbes to break down synthetic waste products such as polychlorinated biphenyls is called
  1.    bioinformatics
  2.    biolistics
  3.    biotechnology
  4.    bioremediation
 Discuss Question
Answer: Option D. -> bioremediation
Answer: (d).bioremediation
Question 110. Activated sludge contains large number of
  1.    bacteria
  2.    yeasts and molds
  3.    protozoa
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these

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