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Biotechnology Engineering

Microbial Biotechnology MCQs

Practice Microbial Biotechnology MCQs for competitive exams.

Microbial Biotechnology MCQs

Practice questions from this topic.

A bioremedial solution to reduce oxides of nitrogen and carbon in flue gases is to integrate flue gas emission to

  1. A. Microalgal culture
  2. B. Fish culture
  3. C. Mushroom culture
  4. D. Sericulture
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A bacterial culture (200 μL containing 1.8 × 10 9 cells) was treated with an antibiotic Z (50 μg per mL) for 4 h at 37°C. After this treatment, the culture was divided into two equal aliquots. Set A: 100 μL was plated on Luria agar. Set B: 100 μL was centrifuged, the cell pellet washed and plated on Luria agar. After incubating these two plates for 24 h at 37°C, Set A plate showed no colonies, whereas the Set B plate showed 0.9 × 10 9 cells. This experiment showed that the antibiotic Z is

  1. A. Bacteriostatic
  2. B. Bacteriocidal
  3. C. Bacteriolytic
  4. D. Apoptotic
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Match the following products with their starting substrates. Group I Group II P. Sake 1. Apple juice Q. Cider 2. Grape juice c. Wine 3. Barley d. Lager 4. Rice

  1. A. P-4, Q-1, R-2, S-3
  2. B. P-1, Q-4, R-2, S-3
  3. C. P-2, Q-3, R-1, S-4
  4. D. P-3, Q-4, R-2, S-1
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Which one of the following options related to the following statements is incorrect? In comparison to physical/chemical methods of clean up, bioremediation methods

  1. A. Use relatively simple techniques
  2. B. Generally end up with hazardous waste material
  3. C. Are relatively slow
  4. D. Are unobtrusive and non-disruptive
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Which of the following is not true of aerobic digestion?

  1. A. It generates most sludge
  2. B. It generally incurs higher running cost
  3. C. It may generate a usable fuel
  4. D. It requires a shorter residence time
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Enzyme papain is used with success to

  1. A. Increase meat produ
  2. B. Leaven bread
  3. C. Ripen papaya fruit
  4. D. Tenderize meat
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Match the items in Group I with the terms given in Group II . Group I Group II P. Lactobacillus and Bifidobacteria 1. Prebiotics Q. Polychlorobenzenes (PCBs) 2. Probiotics R. Fructo-oligosaccharides 3. Antibiotics S. β-Lactams 4. Xenobiotics

  1. A. P-2, Q-4, R-1, S-3
  2. B. P-3, Q-4, R-1, S-2
  3. C. P-4, Q-1, R-2, S-3
  4. D. P-1, Q-3, R-4, S-2
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Match items in Group I with correct examples from those in Group II . Group I Group II P. Catabolic product 1. Griseofulvin Q. Bioconversion 2. Baker's yeast R. Biosynthetic product 3. 6-Aminopenicillanic acid S. Cell mass 4. Ethanol

  1. A. P-4, Q-3, R-2, S-1
  2. B. P-3, Q-4, R-1, S-2
  3. C. P-4, Q-3, R-1, S-2
  4. D. P-1, Q-4, R-3, S-2
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The selection of the appropriate purification method in the product recovery after microbial fermentation depends on the

  1. A. Nature and the stability of the end products produced
  2. B. Type of the side products present
  3. C. Degree of purification required
  4. D. All of the above
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Ethanol concentration is lowest in

  1. A. Wine
  2. B. Beer
  3. C. Brandy
  4. D. Rum
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Which one of the following bioreactor configurations is the basis for a trickling biological filter?

  1. A. Stirred tank
  2. B. Packed bed
  3. C. Air lift
  4. D. Fluidized bed
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A biological process is involved in the . . . . . . . . treatment of industrial effluent.

  1. A. Primary
  2. B. Secondary
  3. C. Tertiary
  4. D. Quaternary
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