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MCQs

Total Questions : 91 | Page 6 of 10 pages
Question 51. Enzyme are soluble in aqueous medium.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 52. __________ is an acidic amino acid.
  1.    Lysine
  2.    Glutamate
  3.    Glutamine
  4.    Serine
 Discuss Question
Answer: Option B. -> Glutamate
Answer: (b).Glutamate
Question 53. Ammonium sulphate is convenient and effective chemical for fractionation by salting out method.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 54. Which one of the following cannot be used as alternative to ammonium sulphate?
  1.    Lysozyme
  2.    Methanol
  3.    Acetone
  4.    Propan-2-ol
 Discuss Question
Answer: Option A. -> Lysozyme
Answer: (a).Lysozyme
Question 55. When the enzyme solubility is reduced by reducing the water availability, the enzyme-enzyme interaction start to take place and they will aggregate to form precipitates. This phenomenon is called ______________
  1.    salting in
  2.    salting out
  3.    precipitation
  4.    chromatography
 Discuss Question
Answer: Option B. -> salting out
Answer: (b).salting out
Question 56. Pick odd one out.
  1.    Histidine
  2.    Cysteine
  3.    Threonine
  4.    Tyrosine
 Discuss Question
Answer: Option A. -> Histidine
Answer: (a).Histidine
Question 57. What does the equation, log⁡S=Kintercept-Ksalt T represent?
  1.    Michalis Menton equation
  2.    Arrhenius equation
  3.    Lineweaver Burk equation
  4.    Solubility of an enzyme
 Discuss Question
Answer: Option D. -> Solubility of an enzyme
Answer: (d).Solubility of an enzyme
Question 58. The process in which there is a free flow low molecular weight compounds across the membrane retaining high molecular weight compound is referred to as _____________
  1.    purity checking
  2.    dialysis
  3.    salting out
  4.    precipitation
 Discuss Question
Answer: Option B. -> dialysis
Answer: (b).dialysis
Question 59. Which one of the following is not true for membrane selection?
  1.    Membrane should be highly polymerized thin films
  2.    Membrane should swell in presence of solvent
  3.    Volume of the solution being dialyzed by the membrane
  4.    Membrane should be chemically inert.
 Discuss Question
Answer: Option C. -> Volume of the solution being dialyzed by the membrane
Answer: (c).Volume of the solution being dialyzed by the membrane
Question 60. Which of the following factors does not limit the rate of dialysis?
  1.    Dialysis membrane relative surface area
  2.    Retentate volume to diffusate volume
  3.    Type of substance
  4.    Diffusible substance concentration outside the membrane
 Discuss Question
Answer: Option C. -> Type of substance
Answer: (c).Type of substance

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