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MCQs

Total Questions : 137 | Page 8 of 14 pages
Question 71. The American Type Culture Collection, located in Rockville, Maryland in the year 1980 has a collection of bacterial strain in what numbers?
  1.    10,000
  2.    11,000
  3.    500
  4.    11,500
 Discuss Question
Answer: Option D. -> 11,500
Answer: (d).11,500
Question 72. Which device is used to pick a single bacterial cell from a mixed culture?
  1.    microscope
  2.    micropipette
  3.    microprobe
  4.    micromanipulator
 Discuss Question
Answer: Option D. -> micromanipulator
Answer: (d).micromanipulator
Question 73. Surface texture of strains are related to virulence.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 74. Pyoverdin is which type of pigment?
  1.    water-insoluble pigment
  2.    water-soluble pigment
  3.    fluorescent pigment
  4.    sparingly water-soluble pigment
 Discuss Question
Answer: Option C. -> fluorescent pigment
Answer: (c).fluorescent pigment
Question 75. What is the color of colonies of Staphylococcus aureus?
  1.    Pink
  2.    Red
  3.    Violet
  4.    Gold
 Discuss Question
Answer: Option D. -> Gold
Answer: (d).Gold
Question 76. Growth in broth cultures occurs mainly in the form of __________
  1.    slightly turbid
  2.    heavy surface pellicle
  3.    sediment
  4.    viscous
 Discuss Question
Answer: Option B. -> heavy surface pellicle
Answer: (b).heavy surface pellicle
Question 77. Which bacteria among the following produces a water-insoluble pigment?
  1.    Mycobacterium kansasii
  2.    Pseudomonas aeruginosa
  3.    Chromobacterium violaceum
  4.    Pseudomonas chlororaphis
 Discuss Question
Answer: Option C. -> Chromobacterium violaceum
Answer: (c).Chromobacterium violaceum
Question 78. Allosteric enzymes are
  1.    larger than simple enzyme
  2.    smaller than simple enzyme
  3.    larger and more complex than simple enzyme
  4.    smaller than simple enzyme but not complex
 Discuss Question
Answer: Option C. -> larger and more complex than simple enzyme
Answer: (c).larger and more complex than simple enzyme
Question 79. Intracellular enzymes
  1.    synthesize cellular material only
  2.    synthesize cellular material and perform catabolic reaction
  3.    synthesize cellular material and perform anabolic reaction
  4.    only provide energy to the cell
 Discuss Question
Answer: Option B. -> synthesize cellular material and perform catabolic reaction
Answer: (b).synthesize cellular material and perform catabolic reaction
Question 80. Enzyme catalase has non-protein metal as
  1.    magnesium
  2.    manganese
  3.    iron
  4.    zinc
 Discuss Question
Answer: Option C. -> iron
Answer: (c).iron

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