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Loyola College M.Sc. Zoology April 2003 Biophysics Question Paper PDF Download

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LOYOLA  COLLEGE (AUTONOMOUS), CHENNAI-600 034.

M.Sc. DEGREE  EXAMINATION  – ZOOLOGY

second SEMESTER  – APRIL 2003

ZO 2804 / Z  826  biophysics

28.04.2003

1.00 -4.00                                                                                           Max: 100 Marks

 

 

PART – A                                       (10 ´ 2 = 20 Marks)

Answer ALL the questions

 

  1. What is half life period of an isotope.
  2. Define Zero mobility.
  3. Explain Beer -Lambert’s law.
  4. What are a and b rays?
  5. Distinguish centripetal and contrifugal forces.
  6. What is color writing?
  7. What is PH?
  8. Explain Fick’s law.
  9. What is plasmolysis?
  10. Distinguish between absorption and adsorption.

 

PART – B                                           (4´10 =40 Marks)

Answer any four questions

 

  1. Give an account of GM counter and its properties.
  2. Explain any two laws of thermodynamics.
  3. Write in detail the capillary rise method to detect surface tension.
  4. Explain Brownian movement.
  5. Write a paragraph on radioisotopes.
  6. Give an account of Spectrophotometry.

 

PART – C                                       (2 ´ 20 = 40 Marks)

Answer any two questions

 

  1. Write an essay on the properties of plarma membrane.
  2. Give an account of Lasers and their applications.
  3. Explain in detail the osmoiono regulation.
  4. Write an essay on PAGE.

 

 

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Loyola College M.Sc. Zoology April 2006 Biophysics Question Paper PDF Download

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             LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 24

SECOND SEMESTER – APRIL 2006

                                                                 ZO 2809 – BIOPHYSICS

 

 

Date & Time : 21-04-2006/9.00-12.00         Dept. No.                                                       Max. : 100 Marks

 

 

Part A                            (Answer All)                            10 X 2 = 20

 

  1. Explain Quantum theory.
  2. What is a centripetal force?
  3. Define zero mobility.
  4. What is enthalpy?
  5. Explain the process of Haemolysis.
  6. Give any two biological uses of ultrasound.
  7. Define numerical aperture of a microscope.
  8. What are Electromagnetic waves?
  9. Define Isotopes.
  10. What is Fick’s law?

Part B                            (Answer any four)                   4 X 10 = 40

  1. Write a paragraph on NMR.
  2. Explain in detail about the ultrasound and its Medical uses.
  3. Write a paragraph on the Medical and Biological uses of X-rays.
  4. Explain the circular paper Chromatography.
  5. What are the principles of light? Highlight the photoelectric effect.
  6. Give an account of the working principle of a Colorimetry.

 

Part C                            (Answer any two)                             2 X 20 = 40

  1. What is PAGE? Explain the principle, working and applications of PAGE.
  2. Explain in detail about the Physical Laws in Living systems.
  3. Write an essay on TEM.
  4. Discuss the principle involved, categories and applications of centrifugation.

 

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Loyola College M.Sc. Zoology April 2007 Biophysics Question Paper PDF Download

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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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Loyola College M.Sc. Zoology April 2008 Biophysics Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

DE 24

SECOND SEMESTER – APRIL 2008

ZO 2809 – BIOPHYSICS

 

 

 

Date : 22/04/2008            Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

PART-A                              (answer all the questions)                   10X2=20marks

  1. Define Isoelectric point.
  2. Comment on isotopes and isobars.
  3. What is refractive index?
  4. What is Haemolysis?
  5. What do you mean by Rf value.
  6. What are alpha rays?
  7. Define mass number.
  8. Define enzymes. Give example
  9. Distinguish TEM from SEM.
  10. List any two biological effects of radiation.

 

PART-B                              (answer any four)                                   4X10=40marks                                                                   

  1. Write notes on phase contrast Microscope.
  2. Explain briefly NMR.
  3. Write a short note on X-rays.
  4. Explain circular paper chromatography.
  5. Define and explain Donnan’s equilibrium.
  6. Explain photoelectric effect.

 

PART-C                             (answer any two)                                      2X20=40marks

  1. Explain in detail the laws of thermodynamics.
  2. Write an essay on PAGE and elaborate their properties.
  3. Define and explain in detail Gibb’s free energy.
  4. Give an account on immunoelectrophoresis.

 

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Loyola College M.Sc. Zoology April 2011 Biophysics Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

SECOND SEMESTER – APRIL 2011

ZO 2815 / 2809 – BIOPHYSICS

 

 

Date : 05-04-2011             Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

Part –A

Answer ALL the questions                                                                                             (10×2=20 Marks)

 

  1. Define Gibb’s free energy.
  2. Comment on Fick’s law.
  3. Differentiate entropy from enthalpy.
  4. List down any two applications of laser.
  5. What is Plasmolysis?
  6. Explain Turgor pressure.
  7. Define Viscosity.
  8. What is Refractive index?
  9. Write down the principle of Thin Layer Chromatography.
  10. Explain Donnan’s equilibrium.

 

Part –B

Answer any FOUR questions                                                                                                  (4×10= 40 Marks)

 

  1. Give an account of Geiger Muller counter.
  2. Describe the surface tension by drop weight method.
  3. What are the factors affecting enzyme action.
  4. Give a detailed account on nuclear magnetic resonance.
  5. Write the principle, procedure and applications of ascending paper chromatography.
  6. Discuss X-ray diffraction and discuss their application.

Part –C

Answer any TWO questions                                                                                          (2×20=40 Marks)

 

  1. Write an essay on the evolution of electrophoresis.
  2. Elaborate the influence of biophysics in photosynthesis.
  3. Give a detailed account of Photoelectric effect.
  4. What are lasers? Explain the ruby laser and enumerate its applications.

 

 

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Loyola College M.Sc. Zoology April 2012 Biophysics Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

SECOND SEMESTER – APRIL 2012

ZO 2815 – BIOPHYSICS

 

 

Date : 19-04-2012             Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

         PART – A

    ALL the questions:                                                                                                               (10×2=20)

 

  1. Distinguish Centripetal force from Centrifugal force.
  2. What are isotopes?
  3. Define Cyclosis and Osmosis.
  4. What is Zero mobility?
  5. Comment on G rays.
  6. Define Refractive index of a microscope.
  7. Write a short note on NMR.
  8. Explain Turgor pressure.
  9. Give any two biological applications of X rays.
  10. Elaborate Optical Rotatory Dispersion.

 

PART – B

    Answer any FOUR questions:                                                                                             (4×10=40)

  1. Explain Viscosity.
  2. Write a brief note on TEM.
  3. Give short notes about Circular Paper Chromotography.
  4. Explain the Medical and Biological uses of X rays.
  5. Geiger Muller Counter – Explain.
  6. Write in detail about Colorimeter.

 

PART – C

Answer any TWO questions:                                                                                                    (2×20=40)

 

  1. Explain the evolution of Electrophoresis.
  2. State the Laws of Thermodynamics and explain them.
  3. Discuss osmosis.
  4. Explain centrifugation in detail.

 

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Loyola College M.Sc. Biotechnology April 2007 Biophysics Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

SC 30

M.Sc. DEGREE EXAMINATION – BIO TECHNOLOGY

SECOND SEMESTER – APRIL 2007

PH 2901 – BIO PHYSICS

 

 

 

Date & Time: 26/04/2007 / 1:00 – 4:00         Dept. No.                                       Max. : 100 Marks

 

 

Part A

Answer all the following questions                                                                         (20 marks)

 

  1. Choose the correct answer (5 x 1 = 5 )

 

  1. _________ at Stanford university developed an array based on cDNA libraries.
  2. a) Pat Brown b) Leibler c) Maxam        d) Smith
  3. K stands for _________.

a)Proline    b) Leucine       c)Lysine           d) Valine.

  1. _________ is the secondary structure that is spontaneously formed.
  2. a) helix b) turn c) coil  d) strand
  3. At higher resolution of _________ the individual atoms can be visualized.

a)4A0         b)2 A0              c)1 A0                 d)3 A0

  1. Type I and II reverse turns differ by a _________ flip of the peptide unit.
  2. a) 1800 b) 650 c)850    d) 1500

 

  1. State whether the following statements are True or False : (5 x 1 = 5 )
  2. In a α helix R groups exist outward from the center of the helix.
  3. The H bonding patterns are similar in parallel and antiparallel β sheets.
  4. Asparagine is the first aminoacid to be discovered.
  5. In proteins the hydrophobic aminoacids are present on the surface .
  6. Left handed helices are allowed in ramachandran plots.

 

III. Complete the following                                                                              (5 x 1 = 5)

  1. In microarrays________ is used to fix DNA to the glass slide.
  2. nano________ can be used in cancer treatment.
  3. The Bfactor is called ________ factor.
  4. ________ are also called fullerenes.
  5. MAD stands for ________.

 

 

 

 

  1. Answer the following each within 50 words . (5 x 1 = 5)
  2. TΨCG loop.
  3. Greek key motif.
  4. Quantum effect.
  5. Writhing number.
  6. Disulfide bonds.

Part B

 Answer any five of the following each in about 350 words.                            (5 x 8 = 40)

  1. Give an account on Rama chandran plots.
  2. Explain the topology of DNA supercoiling.
  3. Explain Multiwavelength anomalous Diffraction in detail.
  4. Discuss about Multiple Isomorphous replacement.
  5. Explain MALDI-TOF in detail.
  6. Discuss about the factors affecting the stability of a helix.
  7. Discuss the importance and applications of biophysics in biotechnology.
  8. Explain the principle and applications of STM .

Part C

 

Answer the following, each  in about 1500 words. Draw necessary diagrams     (2 x 20 = 40)

 

  1. a) Explain in detail the various weak interactions that stabilize the protein structures.

OR

  1. Explain the bottum up methods in nanotechnology.

 

  1. a) Discuss about the gene expression studies and their applications.

OR

  1. Explain how NMR can be used the determination of protein structures.

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2009 Biophysics Question Paper PDF Download

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     LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

VE 49

FIFTH SEMESTER – April 2009

PB 5408 – BIOPHYSICS

 

 

 

Date & Time: 04/05/2009 / 1:00 – 4:00       Dept. No.                                                       Max. : 100 Marks

 

 

 

PART A                                       (20 marks)

Answer All questions

 

I Choose the Correct Answer                                                                  (5 x 1 = 5 marks)

 

  1. In industries ultrafiltration is used to separate ____________.
  2. biomolecules b. carbohydrates          c. proteins                    d. all the above

 

  1. __________is the number of moles of a solute dissolved in a liter of solution.
  2. molality b. molarity                  c. normality                 d. PPM

 

03.___________ is used to visualizing DNA in UV light.

  1. agarose            b. ethidium bromide                 c. SDS             d. silver nitrate

 

  1. In Fluorescence microscope ____________ stain is used for lipid.
  2. cellofluor white b. Nile blue      c. acridine orange        d. none of the above

 

  1. __________ are the most dangerous form of radiation emitted by a nuclear explosion.
  2. alpha rays b. gamma rays             c. beta rays                  d. x rays

 

II State whether the following statements are True or False              (5 x 1 = 5 marks)

  1. Brownian movement may be used to distinguish between solutions and colloids.
  2. Hydrogen ion concentration is the number of moles of hydrogen ions per cubic

decimeter.

  1. Size exclusion chromatography is also called as affinity chromatography.
  2. Gases flow much easier than liquids or solids.
  3. Apoptosis is also called as programmed cell death.

 

III. Complete the following                                                                   (5 x 1 = 5 marks)

  1. __________ in the air is an essential gas for life.
  2. pH is a measurement of the concentration of __________ ions in a solution.
  3. Agarose is a linear polymer extracted from ______________.
  4. The ability of the medium to reduce the light velocity is called ___________.
  5. Unnatural cell death is called as _______________.

 

 

 

 

  1. Answer all, each in about 50 words  (5 x 1 = 5 marks)

 

  1. What is Brownian movement?
  2. Define Osmosis.
  3. What is Adsorption?
  4. Define refraction.
  5. Write notes on cell death.

PART B                       (5 x 8 = 40 marks)

Answer any five, each within 350 words only. Draw diagrams and flowcharts wherever necessary.

 

  1. Explain the important characteristics and theories of gases.
  2. Write detailed notes on percentage of concentration.
  3. Briefly describe the principles of Ion exchange chromatography and its uses.
  4. Write the principle, mechanism and uses of colorimetry.
  5. Emulsions and suspensions.
  6. Describe the following
  7. i) Wave nature of light.
  8. ii) Interference.
  9. Write notes on radioimmunoassay and its uses.
  10. Mention the biological effects and uses of radiation.

 

PART C                       (2 x 20 = 40 marks)

 

Answer the following, each within 1500 words only. Draw diagrams and flowcharts wherever necessary.

 

  1. Write notes on the followings
  2. i) Different types of chromatography.
  3. ii) 3 important theories of acids and bases.

iii) Immunofluoresence.

OR

  1. b) Elaborately describe the principle and uses of Gel electrophoresis.

 

  1. a) Write detailed notes on two types of electron microscope.

OR

  1. b) Write notes on the following
  2. i) Properties of colloids and their types with examples.
  3. ii) Affinity chromatography and its uses.

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Biophysics Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2012

PB 5408 – BIOPHYSICS

 

 

 

Date : 30-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

PART A

                                        

Answer the following, each answer within 50 words:                                        (10 x 2 = 20 marks)

 

  1. Define Brownian movement.
  2. What is sedimentation?
  3. Define osmosis.
  4. What is a buffer?
  5. Mention any two properties of colloids.
  6. What is isoelectric focusing?
  7. Define Beer-Lamberts law.
  8. What is fluorescence?
  9. Define radioactivity.
  10. What is free energy?

 

PART  B

 

Answer the following, each answer within 500 words:

Draw diagrams wherever necessary:                                                                  (5 x 7= 35 marks)

 

  1. Write notes on sedimentation and factors influencing it.

(or)

  1. Give a brief account of the kinetic theory of gases.

 

  1. Explain in brief about osmosis and factors affecting osmosis.

(or)

  1. Write notes on the various methods for preparing solutions of different concentration.

 

  1. Give an account of colloids, their properties and classifications.

(or)

  1. Write short notes on the principles of chromatography.

 

  1. Explain briefly about the properties of light.

(or)

  1. Discuss in brief about the fluorescence microscopy and its applications.

.

  1. Write short notes on radioactive decay.

(or)

  1. What are the various laws of thermodynamics?

 

 

 

 

PART C

 

Answer any three of the following, each answer within 1200 words:

Draw diagrams wherever necessary:                                                             (3 x 15= 45 marks)

 

  1. Discuss in detail about the principles and types of centrifugation.
  2. What is pH? Write detailed notes on the measurement of pH and the biological importance of pH.
  3. Explain in detail about various types of chromatography.
  4. Give a detailed explanation on the structure and functioning of scanning electron microscopes.
  5. What are radioisotopes? Explain in detail about the applications of radioisotopes in biology.

 

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