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MCQs

Total Questions : 22 | Page 1 of 3 pages
Question 1. _________ are devices used to detect the presence or concentration of a biological analyte, such as a biomolecule, a biological structure or a microorganism.
  1.    Biosensors
  2.    Transducers
  3.    Optic Fiber
  4.    Regulator
 Discuss Question
Answer: Option A. -> Biosensors
Answer: (a).Biosensors
Question 2. Which sensor uses the principle of Total Internal Reflection?
  1.    Fiber optic sensor
  2.    Electrochemical sensor
  3.    Immunosensor
  4.    Galvanized sensor
 Discuss Question
Answer: Option A. -> Fiber optic sensor
Answer: (a).Fiber optic sensor
Question 3. The __________ is a biomolecule that recognizes the target analyte whereas the transducer converts the recognition event into a measurable signal.
  1.    Bioreceptor
  2.    Biosignal
  3.    Biodegradation
  4.    Bioselectivity
 Discuss Question
Answer: Option A. -> Bioreceptor
Answer: (a).Bioreceptor
Question 4. Surface plasmon resonance (SPR) is the resonant oscillation of conduction electrons at the interface between negative and positive permittivity material stimulated by incident light.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 5. A _________ crystal is a part of a sensor which primarily works using the principle of oscillation changes because of the mass bound to the surface of the piezoelectric crystal.
  1.    Piezoelectric
  2.    Shiny
  3.    Hard
  4.    Fluorescent
 Discuss Question
Answer: Option A. -> Piezoelectric
Answer: (a).Piezoelectric
Question 6. Sucrose is a way of testing for glycemia.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 7. _________ spectroscopy is based on the interaction of an external field with the electric dipole moment of the sample, often expressed by the permittivity.
  1.    Dielectric
  2.    Capacitor
  3.    Transducer
  4.    Electrochemical
 Discuss Question
Answer: Option A. -> Dielectric
Answer: (a).Dielectric
Question 8. Small molecule sensors are an effective way to detect the presence of fungal cells.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 9. Impedance spectroscopy measures the resistance and capacitance properties of material via application of a ______________ air conditioning excitation signal of c. 2–10 mV.
  1.    sinusoidal
  2.    linear
  3.    exponential
  4.    declining
 Discuss Question
Answer: Option A. -> sinusoidal
Answer: (a).sinusoidal
Question 10. Atomic polarization is observed when the nucleus of the atom reorients in response to the electric field.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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