LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 30

SECOND SEMESTER – APRIL 2007

ZO 2809 – BIOPHYSICS

 

 

 

Date & Time: 19/04/2007 / 1:00 – 4:00          Dept. No.                                                             Max. : 100 Marks

 

 

PART – A                                                (Answer all)                                       10 x 2 = 20

 

1. What is half life period?
2. Define the following.   a)NMR       b)PAGE
3. Write any two applications of radioactivity.
4. What is Refractive index?
5. Distinguish between Entropy and Enthalpy.
6. Define Osmotic pressure.
7. What is Zero mobility?
8. Write short notes on Flame photometer.
9. What are  preparative centrifugation  and analytical centrifugation.
10. Define Brownian movement.

 

PART – B                                    (Answer any four)                                         4 x 10 = 40

 

1. Explain the working principle of GM counter.
2. Elucidate the various factors affecting Enzyme activity.
3. Write a paragraph on Ultracentrifuge.
4. Explain all the three laws of Thermodynamics.
5. Write a paragraph on Kinetic theory of reactions.
6. Write a paragraph on immunoelectrophoresis.

 

PART – C                                    (Answer any two)                                          2 x 20 = 40

 

1. Write an essay on principle of Spectrophotometer. Classify and elaborate its applications.
2. Define Donnan’s Equilibrium and give a detailed account of laws of Osmosis.
3. Write the principle involved in Compound and Electron microscopy and compare TEM and SEM.
4. Define viscosity and explain in detail the working principle of a Viscometer.

 

 

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