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MCQs

Total Questions : 195 | Page 14 of 20 pages
Question 131. Which of the following are commercially used for bacterial amylases production?
  1.    Bacillus subtilis
  2.    Bacillus diastaticus
  3.    Clostridium acetobutylicum
  4.    Both (a) and (b)
 Discuss Question
Answer: Option D. -> Both (a) and (b)
Answer: (d).Both (a) and (b)
Question 132. An "International Unit" of penicillin activity established in 1944 is amount of penicillin equivalent to
  1.    0.6 micrograms of crystalline penicillin G of about 98% purity
  2.    0.6 micrograms of crystalline penicillin F of about 98% purity
  3.    0.8 micrograms of crystalline penicillin G of about 98% purity
  4.    0.8 micrograms of crystalline penicillin G of about 90% purity
 Discuss Question
Answer: Option A. -> 0.6 micrograms of crystalline penicillin G of about 98% purity
Answer: (a).0.6 micrograms of crystalline penicillin G of about 98% purity
Question 133. The man who first discovered the chemical that causes souring of milk was
  1.    Pasteur
  2.    Scheele
  3.    Watson
  4.    Ronald Ross
 Discuss Question
Answer: Option B. -> Scheele
Answer: (b).Scheele
Question 134. Which of the following is a cephalosporin?
  1.    Cephalosporin N
  2.    Synnematin
  3.    Cephalosporin C
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Answer: (d).All of these
Question 135. Which of the following is not a penicillin?
  1.    Penicillin G
  2.    Penicillin X
  3.    Penicillin V
  4.    Penicillin Y
 Discuss Question
Answer: Option D. -> Penicillin Y
Answer: (d).Penicillin Y
Question 136. Cephalosporin an antibiotic closely related to penicillin in structure and antibiotic activity are produced by species of
  1.    Cephalosporium
  2.    Cephalospodium
  3.    Pseudomonas
  4.    Bacillus
 Discuss Question
Answer: Option B. -> Cephalospodium
Answer: (b).Cephalospodium
Question 137. The first commercial fermention carried out to obtain L-lysine is known as
  1.    dual fermentation
  2.    indirect fermentation
  3.    direct fermentation
  4.    both (a) and (b)
 Discuss Question
Answer: Option D. -> both (a) and (b)
Answer: (d).both (a) and (b)
Question 138. The precursor of Penicillin G is
  1.    phenoxy acetic acid
  2.    phenyl acetic acid
  3.    hydroxy phenyl acetic acid
  4.    none of these
 Discuss Question
Answer: Option B. -> phenyl acetic acid
Answer: (b).phenyl acetic acid
Question 139. Which of the following is not a principal media for industrial alcohol production by fermentation?
  1.    Black strap molasses
  2.    Sulphite waste liquor
  3.    Wood waste
  4.    Glucose
 Discuss Question
Answer: Option D. -> Glucose
Answer: (d).Glucose
Question 140. The production of alcohol from lactose of whey is generally carried out by
  1.    Saccharomyces cerevisiae
  2.    Candida pseudotropicalis
  3.    Candida utilis
  4.    none of these
 Discuss Question
Answer: Option B. -> Candida pseudotropicalis
Answer: (b).Candida pseudotropicalis

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