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MCQs

Total Questions : 238 | Page 7 of 24 pages
Question 61. For culturing, plasma from the adult chicken is preferred to mammalian plasma because
  1.    it forms a clear and solid coagulum even after dilution
  2.    it is too opaque
  3.    it doesn't produce solid clots
  4.    it forms a semi solid coagulum
 Discuss Question
Answer: Option A. -> it forms a clear and solid coagulum even after dilution
Answer: (a).it forms a clear and solid coagulum even after dilution
Question 62. Range of osmolarity tolerated/accepted in mOsm/Kg of H2O by mammalian cells is
  1.    150-300
  2.    280-360
  3.    300-325
  4.    360-400
 Discuss Question
Answer: Option B. -> 280-360
Answer: (b).280-360
Question 63. Toxicity due to accumulation of ammonia can be overcome
  1.    by substituting glutamine by glutamate
  2.    by controlled addition of glutamine at low level
  3.    by removal of ammonia or ammonium from culture medium
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 64. Accumulation of lactate leads to
  1.    increase in pH
  2.    no change in pH
  3.    reduction in the pH of culture hence loss of cell viability
  4.    no loss of cell viability
 Discuss Question
Answer: Option C. -> reduction in the pH of culture hence loss of cell viability
Answer: (c).reduction in the pH of culture hence loss of cell viability
Question 65. Disaggregating of cells can be achieved by
  1.    physical disruption
  2.    enzymatic digestion
  3.    treating with chelating agents
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 66. The technique of organ culture may be divided on the basis of employing
  1.    solid medium
  2.    liquid medium
  3.    both (a) and (b)
  4.    semi-solid medium
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)
Question 67. Specific oxygen consumption rates for mammalian cells are in the range of (where n and p represents to nano and pico respectively)
  1.    0.05-5 nmol of O2/cell/h
  2.    5 - 10 nmol of O2 /cell/h
  3.    0.05-5 pmol of O2/cell/h
  4.    5 - 10 pmol of O2/cell/h
 Discuss Question
Answer: Option C. -> 0.05-5 pmol of O2/cell/h
Answer: (c).0.05-5 pmol of O2/cell/h
Question 68. Which of the following is not a source of energy in active muscle cells?
  1.    Creatine phosphate
  2.    ATP
  3.    Lactic acid
  4.    Glucose
 Discuss Question
Answer: Option C. -> Lactic acid
Answer: (c).Lactic acid
Question 69. An established cell line can be called where it has been subcultured at least
  1.    70 times at an interval of 3 days between subcultures
  2.    40 times at an interval of 3 days between subcultures
  3.    70 times at an interval of 1 day between subcultures
  4.    50 times at an interval of 3 days between subcultures
 Discuss Question
Answer: Option A. -> 70 times at an interval of 3 days between subcultures
Answer: (a).70 times at an interval of 3 days between subcultures
Question 70. At low glucose concentration, below 0.25 mmol/litre, large portions of glucose and glutamine is shunted via
  1.    oxidative pathway
  2.    anaerobic pathway
  3.    both (a) and (b)
  4.    none of these
 Discuss Question
Answer: Option A. -> oxidative pathway
Answer: (a).oxidative pathway

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