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MCQs

Total Questions : 238 | Page 22 of 24 pages
Question 211. . What is the concentration of CO2 required for culturing animal cells?
  1.    2-5%
  2.    1-10%
  3.    10-15%
  4.    15-20%
 Discuss Question
Answer: Option B. -> 1-10%
Question 212. . Which of the followings are the metabolic products of glucose and glutamine?
  1.    CO2 and NH3
  2.    CO2 and lactate
  3.    Lactate and ammonium
  4.    Lactate only
 Discuss Question
Answer: Option C. -> Lactate and ammonium
Question 213. . What are the main constituents of culture for animal cell growth?
  1.    Glucose and Glutamine
  2.    Growth factors
  3.    Cytokines
  4.    All of these
 Discuss Question
Answer: Option A. -> Glucose and Glutamine
Question 214. . The human fibroplast is a classical example of
  1.    stable primary cell lines
  2.    established cell lines
  3.    cell transformations
  4.    none of these
 Discuss Question
Answer: Option A. -> stable primary cell lines
Question 215. . During the growth of animal cells in culture, it is noticed that the cells do not look very healthy. After an investigation, this is found that there is a lot of lactic acid in the culture fluid. What is probably wrong with this culture?
  1.    Ethyl alcohol is being produced in excess
  2.    The cells have too much oxygen
  3.    Glycolysis is being inhibited
  4.    The cells do not have enough oxygen
 Discuss Question
Answer: Option D. -> The cells do not have enough oxygen
Question 216. . pH of culture medium is initially controlled by
  1.    presence of CO2
  2.    presence of bicarbonate buffer
  3.    addition of bases
  4.    none of these
 Discuss Question
Answer: Option B. -> presence of bicarbonate buffer
Question 217. . Range of optimum glutamine concentration present in the culture media is
  1.    1-2 mmol/litre
  2.    2-7 mmol/litre
  3.    7-15 mmol/litre
  4.    15 - 20 mmol/litre
 Discuss Question
Answer: Option B. -> 2-7 mmol/litre
Question 218. . Which of the following abnormality, resulted from the inheritance of an unbalanced complement of chromosomes can be diagnosed through karotyping?
  1.    Down's syndrome
  2.    Turner's syndrome
  3.    Klinefelter's syndrome
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 219. . In animal cell culture, particularly mammalian cell culture, transformation means
  1.    uptake of new genetic material
  2.    phenotypic modifications of cells in culture
  3.    both (a) and (b)
  4.    release of genetic information
 Discuss Question
Answer: Option B. -> phenotypic modifications of cells in culture
Question 220. . How does CO2 help in the cell metabolism during cell culture?
  1.    It participates in the de novo synthesis of purines and pyrimidines
  2.    Helps in the cells respiration
  3.    For monitoring pH of the culture
  4.    All of the above
 Discuss Question
Answer: Option A. -> It participates in the de novo synthesis of purines and pyrimidines

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