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MCQs

Total Questions : 56 | Page 6 of 6 pages
Question 51. Alkali treatment is not advisable for which of the following?
  1.    Extracellular enzymes
  2.    Bacterial enzymes in cell wall
  3.    Enzymes in cell wall of plant sources
  4.    Membrane bound enzymes in eukaryotic cell
 Discuss Question
Answer: Option A. -> Extracellular enzymes
Answer: (a).Extracellular enzymes
Question 52. Homogenization utilizing ____________ is one where in manual pressure is created for cell lysis.
  1.    mortar and pestle
  2.    ultrasonicator
  3.    freezer
  4.    french press
 Discuss Question
Answer: Option A. -> mortar and pestle
Answer: (a).mortar and pestle
Question 53. ____________ technique is nothing but a cold or psychrophilic shock.
  1.    Ultrasonication
  2.    Homogenization
  3.    Freezing
  4.    Alkali treatment
 Discuss Question
Answer: Option C. -> Freezing
Answer: (c).Freezing
Question 54. A _________ has long teflon tube about 30-40 cm long which is bulged at the end and has an automated machine for providing the pressure.
  1.    ultrasonicator
  2.    homogenizer
  3.    osmotic shock
  4.    mortar and pestle
 Discuss Question
Answer: Option C. -> osmotic shock
Answer: (c).osmotic shock
Question 55. The technique in which the cells are subjected to cold temperature of about -15° C to -25° C is referred to as _____________
  1.    ultrasonics
  2.    freezing
  3.    homogenization
  4.    osmotic shock
 Discuss Question
Answer: Option B. -> freezing
Answer: (b).freezing
Question 56. Homogenization performed by passing the cells at high pressure through narrow orifice which can also cause cell rupture is referred to as _______________
  1.    ultrasonicator
  2.    freezer
  3.    mortar and pestle
  4.    french press
 Discuss Question
Answer: Option A. -> ultrasonicator
Answer: (a).ultrasonicator

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