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MCQs

Total Questions : 212 | Page 17 of 22 pages
Question 161. The Bacillus cereus causes gasteroenteritis by the production of an exoenterotoxin which is released in food as a result of
  1.    cell growth
  2.    cell autolysis
  3.    cell permeation
  4.    cell damage
 Discuss Question
Answer: Option B. -> cell autolysis
Answer: (b).cell autolysis
Question 162. Staphylococcal intoxication is caused by the toxin m the food from
  1.    Staphylococcus aureus
  2.    S. cerevisiae
  3.    S. thermophillus
  4.    none of these
 Discuss Question
Answer: Option A. -> Staphylococcus aureus
Answer: (a).Staphylococcus aureus
Question 163. Which of the following gases are produced in large amounts during sludge digestion?
  1.    methane
  2.    carbon-dioxide
  3.    hydrogen
  4.    nitrogen
 Discuss Question
Answer: Option A. -> methane
Answer: (a).methane
Question 164. Which of the following organism occurs on the skin of fresh poultry?
  1.    pseudomonads
  2.    staphylococci
  3.    micrococci
  4.    enterococci
 Discuss Question
Answer: Option A. -> pseudomonads
Answer: (a).pseudomonads
Question 165. Raw milk of good sanitary quality will develop sweet flavour.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 166. What is the pH of bananas?
  1.    2.3
  2.    5.0
  3.    7.0
  4.    12.0
 Discuss Question
Answer: Option B. -> 5.0
Answer: (b).5.0
Question 167. At what temperature pasteurization of milk takes place?
  1.    65° C
  2.    37° C
  3.    62.8° C
  4.    45° C
 Discuss Question
Answer: Option C. -> 62.8° C
Answer: (c).62.8° C
Question 168. Which among the following is a gas producer organism?
  1.    Streptococcus lactis
  2.    Lactobacillus fermentum
  3.    Micrococcus luteus
  4.    Clostridium butyricum
 Discuss Question
Answer: Option D. -> Clostridium butyricum
Answer: (d).Clostridium butyricum
Question 169. The coloration of the milk is caused by which of the following organism?
  1.    Pseudomonas sp.
  2.    Bacillus sp.
  3.    Penicillium sp.
  4.    Streptococcus sp.
 Discuss Question
Answer: Option A. -> Pseudomonas sp.
Answer: (a).Pseudomonas sp.
Question 170. In which of the following biochemical types of microorganisms a slime layer or capsule is formed on the cells?
  1.    Acid producers
  2.    Gas producers
  3.    Ropy or stringy fermentation
  4.    Proteolytic
 Discuss Question
Answer: Option C. -> Ropy or stringy fermentation
Answer: (c).Ropy or stringy fermentation

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