B.Sc Chemistry Bio Chemistry Question Paper 2008

“Loyola College B.Sc. Chemistry April 2008 Bio Chemistry Question Paper PDF Download”

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – CHEMISTRY

GH 17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIFTH SEMESTER – APRIL 2008

CH 5401 – BIO CHEMISTRY

 

 

 

Date : 06/05/2008                Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

            PART A

Answer all the questions                                                                                                         10 x 2 = 20

  1. What are the functions of nucleus?
  2. What is Zwitter ion?
  3. What are ligases? Give an example.
  4. Draw the structure of cholesterol.
  5. What are the products obtained by the oxidation of fructose?
  6. What are the differences between cellulose and starch?
  7. Write a note on biological oxidation?
  8. What is the role of ubiquinone in electron transport mechanism?
  9. What are purine and pyrimidine bases?
  10. Write down the various types of RNA.

PART B

Answer any eight questions                                                                                        8 x 5 = 40

  1. Explain the primary structure of proteins.
  2. How is N-terminal of an amino acid determined by Sanger’s method?
  3. How is alanyl glycine prepared?
  4. Explain the factors affecting the enzyme activity.
  5. Discuss β-Oxidation of fatty acids.
  6. Discuss any three important phospholipids.
  7. Explain the cyclic structure of D-glucose.
  8. Explain the classification of carbohydrates with examples.
  9. Discuss the mechanism of oxidative phosphorylation.
  10. Draw the structure of hemoglobin. Write any two the functions of hemoglobin.
  11. Explain the clover leaf model of t-RNA.

22     Discuss the replication of DNA.

PART C

Answer any four questions                                                                               4 x 10 = 40

  1. a) Explain the secondary structure of proteins.
  2. b) Describe any two methods of preparation of amino acids.
  3. a) Explain the steps involved in absorption and digestion of proteins.
  4. b) What are the differences between animal and plant fats?
  5. Describe different types of enzyme inhibition.
  6. Explain the overall process of glycolysis with enzymes involved in each step and energy yield.
  7. Explain the role of RNA involved in protein biosynthesis.
  8. Explain the double helical structure of DNA.

 

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“Loyola College B.Sc. Chemistry Nov 2008 Bio Chemistry Question Paper PDF Download”

by

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – CHEMISTRY

DB 16

 

FIFTH SEMESTER – November 2008

CH 5404/CH 5401 – BIO CHEMISTRY

 

 

 

Date : 14-11-08                     Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

PART A

Answer ALL the questions.                                                                                                             (10 x 2 = 20)

 

  1. What are the functions of cytoplasm of the cell?
  2. How is the presence of aldehyde group confirmed in glucose?
  3. What are essential fatty acids? Give an example.
  4. Define iodine number of an oil.
  5. Write down the differences between amylose and glycogen.
  6. What is glycosidic bond? Give an example.
  7. What is respiration? What are the two phases of respiration?
  8. Define oxidative phosphorylation.
  9. Draw the structure of adenylic acid.
  10. What are coenzymes?

PART B

Answer any EIGHT questions.                                                                                                        (8 x 5 = 40)

 

  1. Write down the differences between Prokaryotic and Eukaryotic cells.
  2. Discuss the β-Oxidation theory of fatty acids.
  3. What are phospholipids? Explain the types of phospholipids.
  4. Mention any five differences between animal and plant fats.
  5. Discuss any five characteristic features of biological oxidation.
  6. Explain the classification of carbohydrates with examples.
  7. Discuss briefly the phase II of the glycolysis process.
  8. Discuss the mechanism of electron transport system.
  9. Explain the replication of DNA.
  10. Draw and explain the double helical structure of DNA.
  11. Explain the steps involved in the translation process of protein synthesis.
  12. How is the cyclic structure of glucose elucidated?

 

PART C

Answer any FOUR questions.                                                                                                         (4 x 10 = 40)

 

  1. Discuss any two methods to determine the N-terminal of an amino acid.
  2. Explain the types of reversible enzyme inhibition.
  3. Explain the series of reactions involved in TCA cycle with the enzymes involved and energy yield.
  4. Discuss the biosynthesis of cholesterol.
  5. a) Draw and explain the structure of t-RNA.
  6. b) Explain the importance of primary structure of proteins.                                                                   (5+5)
  7. a) Explain the chemistry of hemoglobin in blood.
  8.  b) What is genetic code? Mention any five important characteristics of genetic                           (5+5)

 

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