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MCQs

Total Questions : 76 | Page 8 of 8 pages
Question 71. _______________ biosensors are those in which the changes in the distribution of charges causing an electrical potential to be produced.
  1.    Calorimetric
  2.    Potentiometric
  3.    Optical
  4.    Amperometric
 Discuss Question
Answer: Option B. -> Potentiometric
Answer: (b).Potentiometric
Question 72. Which of these properties is not true for mediators?
  1.    Mediators must react rapidly with a reduced form of enzyme
  2.    Mediators must be sufficiently soluble in oxidized and reduced forms
  3.    The reduced form of the mediator should not readily react with oxygen
  4.    Increasing the heat output
 Discuss Question
Answer: Option D. -> Increasing the heat output
Answer: (d).Increasing the heat output
Question 73. Which of the following represents a commonly used family of mediators?
  1.    Pyruvate kinase
  2.    Hexokinase
  3.    Ferrocenes
  4.    Lactate oxidase
 Discuss Question
Answer: Option C. -> Ferrocenes
Answer: (c).Ferrocenes
Question 74. Amperometric biosensors for flavo-oxidase enzymes illustrates three generations in the development of a biosensor.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 75. There are two main areas of development in optical biosensors.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 76. What is represented by the following equation?
I = nFAvᴀ
  1.    Frequency
  2.    Current
  3.    Electrical resistance
  4.    Electrical potential
 Discuss Question
Answer: Option B. -> Current
Answer: (b).Current

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