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MCQs

Total Questions : 195 | Page 18 of 20 pages
Question 171. Chlorotetracycline a broad spectrum antibiotic is produced by
  1.    Streptomyces aureofaciens
  2.    Streptomyces rimosus
  3.    Streptomyces venezuelae
  4.    Streptomyces erythreus
 Discuss Question
Answer: Option A. -> Streptomyces aureofaciens
Answer: (a).Streptomyces aureofaciens
Question 172. Which of the following agents involve biosensors linking with electronic circuit?
  1.    Microorganisms
  2.    Microbially derived enzymes
  3.    Either microorganisms or microbially derived enzymes
  4.    Neither microorganisms nor microbially derived enzymes
 Discuss Question
Answer: Option B. -> Microbially derived enzymes
Answer: (b).Microbially derived enzymes
Question 173. Vinegar is a fermentation derived food product containing not less than
  1.    4% acetic acid
  2.    15% acetic acid
  3.    25% acetic acid
  4.    6% acetic acid
 Discuss Question
Answer: Option A. -> 4% acetic acid
Answer: (a).4% acetic acid
Question 174. β-carotene is also known as
  1.    vitamin A
  2.    provitamin A
  3.    vitamin C
  4.    vitamin D
 Discuss Question
Answer: Option B. -> provitamin A
Answer: (b).provitamin A
Question 175. The production of acetic acid from ethanol is an
  1.    anaerobic process
  2.    aerobic process
  3.    a combination of both
  4.    none of the above
 Discuss Question
Answer: Option B. -> aerobic process
Answer: (b).aerobic process
Question 176. Protease, which is used for flavouring of sake and haze removal in sake is produced by
  1.    A. oryzae
  2.    A. flavus
  3.    B. cereus
  4.    A. niger
 Discuss Question
Answer: Option A. -> A. oryzae
Answer: (a).A. oryzae
Question 177. The early assay employed for measuring penicillin activity were based upon the quantity required to prevent growth of S. aureus over
  1.    20 mm diameter zone using the cylinder plate method of assay
  2.    24 mm diameter zone using the cylinder plate method of assay
  3.    200 mm diameter zone using the cylinder plate method of assay
  4.    None of the above
 Discuss Question
Answer: Option B. -> 24 mm diameter zone using the cylinder plate method of assay
Answer: (b).24 mm diameter zone using the cylinder plate method of assay
Question 178. A major organic acid produced by a microbial process used in foods is
  1.    sulfuric acid
  2.    citric acid
  3.    oxalic acid
  4.    uric acid
 Discuss Question
Answer: Option B. -> citric acid
Answer: (b).citric acid
Question 179. Penicillin G is also known as
  1.    hydroxy benzyl penicillin
  2.    phenoxy methyl penicillin
  3.    benzyl penicillin
  4.    2-pentenyl penicillin
 Discuss Question
Answer: Option C. -> benzyl penicillin
Answer: (c).benzyl penicillin
Question 180. The organism B. brevis can be used commercially for the production of
  1.    gramicidin A
  2.    tyrothricin(bacitracin tyrocidin complex)
  3.    tyrocidin
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above

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