M.Sc. DEGREE EXAMINATION, NOVEMBER 2017.
Third Semester
Physics (Spl in Biosensor)
BIOSENSOR
(CBCS 2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Define sensor.
2. What s meant by transducer?
3. What is counter electrode?
4. Write the mechanism of electrochemical sensor.
5. What is electromagnetic spectrum?
6. Define refraction.
7. Explain the Enzyme biocatalysis.
8. Write the advantages of affinity biosensor.
9. What is dielectric constant?
10. Define nanosensor.
Sub. Code
522303
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Part B x 5 25)
Answer all questions, choosing either or
11. Write short notes on sensor characteristics.
Or
Write any four application of sensors.
12. Describe the biosensor applications.
Or
Write in detail about the glucose biosensor.
13. Write the principle of acoustic biosensor.
Or
Write short notes on biosensor.
14. Discuss on more single enzyme based biosensor.
Or
Explain about multiple enzyme biosensors.
15. Write a short notes on resistance thermometers.
Or
Explain the load cell and pirani gauge.
Part C x 10 30)
Answer any three questions.
16. Discuss about different types of sensors.
17. Describe the immunosensor and its application.
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18. Write in detail about DNA biosensor.
19. Explain in detail the microorganism based biosensor.
20. Explain about LVDT.
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