Loyola College Bio-Chemistry For Biologist Question Papers

Loyola College Supplementary Chemistry April 2006 Bio-Chemistry For Biologist Question Paper PDF Download

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             LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

SUPPLEMENTARY SEMESTER EXAMINATION – JUN 2006

B.Sc. DEGREE EXAMINATION

                                             CH 4202 – BIO-CHEMISTRY FOR BIOLOGIST

 

 

 

Date & Time : 28/06/2006/1.00 – 4.00          Dept. No.                                                       Max. : 100 Marks

 

 

PART – A

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

  1. What is denaturation of proteins?
  2. Define the isoelectric pH of a protein.
  3. Differentiate lyases from ligases.
  4. Mention any three functions of lipoproteins.
  5. Write the structural formulation of a nucleotide. Indicate clearly the nucleoside    portion in it.
  6. Draw the open and cyclic structure of D- glucose.
  7. Give the net gain of ATP in the glycolysis one mole of glucose to pyruvate.
  8. What is Bordeaux mixture? Mention its importance.
  9. How is terpene extracted from the flowers?
  10. Draw the structure of nicotine? Mention its physiological action.

PART – B

Answer ALL the questions.                                                                           (8 X 5 = 20)

  1. Discuss the synthesis of aspartic acid by pthalimidomalonic ester method.
  2. Explain Edmand Pehr method of N- terminal analysis of proteins.
  3. Illustrate the two models proposed to explain the enzyme action.
  4. How are the carbohydrates classified?
  5. Write a short note on glycolipids, sphingolipids and plasmolipids.
  6. What is inhibition? Explain reversible and irreversible inhibitions?
  7. How are super phosphate and triple super phosphate of lime manufactured?
  8. Write a short note on the importance of micro and macro nutrients.
  9. Illustrate the hydrogen bonding in the G – C and A – T base pairs.
  10. What is isoprene rule? Apply it to citral.
  11. Write a short note on anthocyanins.
  12. Describe the structure, properties and uses of citral and camphor.

 


PART – C

 

Answer any FOUR questions only.                                                             (4X 10 = 40)

  1. Explain the structure, properties and functions of fibre and globular proteins.
  2. What is glycolysis? Discuss the various steps involved in the glycolysis of glucose to pyruvate.
  3. Discuss the salient features of Crick and Watson model for the structure of DNA.
  4. What are alkaloids? How are they classified? Explain the structure, physical properties and physiological actions of papaverine.
  5. Write a short on the biological importance of lipids.                    (4)
  6. What is saponification value of oil? How is it determined? What is its                                  significance?                                                                                                  (6)
  7. a. Explain the preparation of amino acids by malonic ester synthesis. (3)
  8. Explain the absolute and group specificity of enzyme calalyzed reaction. (4)
  9. What is role of humus in the fertility of soil?                    (3)

 

 

 

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Loyola College B.Sc. Zoology Nov 2016 Bio-Chemistry For Biologist Question Paper PDF Download

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Loyola College B.Sc. Chemistry April 2006 Bio-Chemistry For Biologist Question Paper PDF Download

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             LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & ZOOLOGY

LM 08

FOURTH SEMESTER – APRIL 2006

                                             CH 4202 – BIO-CHEMISTRY FOR BIOLOGIST

(Also equivalent to CHE 202)

 

 

Date & Time : 22-04-2006/9.00-12.00         Dept. No.                                                       Max. : 100 Marks

 

 

PART – A

 

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

  1. What is isoelectric point?
  2. Give the structure of lecithin.
  3. How is C- terminal of a peptide determined?
  4. What are enzymes? How are they named?
  5. Mention the roles of the various types of RNA.
  6. What is a reducing sugar? Cite an example.
  7. Give the net reaction of glycolysis.
  8. Explain the enfleurage process.
  9. List the uses of camphor.
  10. Draw the structures of BHC and DDT.

PART – B

Answer any EIGHT questions only.                                                   (8 X 5 = 40)

  1. Discuss the secondary structures of proteins.
  2. Why do almost all enzyme catalyzed reactions show a pH optimum?
  3. Write a short note on the classification of lipids.
  4. What are anomers? Draw the anomeric structures of D-glucose and compare their stability.
  5. Mention the monosaccharide units present in the following sugars:
  6. Maltose b. Cellobiose   c. Lactose        d. Sucrose       e. Starch.
  7. Discuss the different types of soil found in India.
  8. Write a short note on N, P and K fertilizers.
  9. Compare and contrast the two nucleic acids in their composition, secondary structure, bases present and their abundance in the body.
  10. Illustrate the importance of hydrogen bonding in the base pairs of nucleic acids.
  11. Write a short note on flavanoids.
  12. What is isoprene rule? Explain it with an example.
  13. Draw the geometrical isomers of citral. List the uses of citral.

 

 

PART – C

 

Answer any FOUR questions only.                                      (4 X 10 = 40)

  1. Discuss the kinds of enzyme inhibition.
  2. Discuss the citric acid cycle in detail.
  3. a. Calculate the net gain of ATP in glycolysis of one mole glucose.             (3)
  4. Write a short note on muta rotation.             (4)
  5. What is denaturation of proteins? What are the factors influencing it? (3)
  6. a. How are terpenoids classified? Give an example each. (5)
  7. Explain the structure, physical properties and uses of α- pinene. (5)
  8. a. What are cofactors? Brief the three kinds of cofactors with an example. (6)
  9. What is iodine value of oil? How is it determined? What is its significance?  (4)
  10. “DNA makes RNA and RNA makes proteins” – establish this with respect to the      biosynthesis of proteins.

 

 

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Loyola College B.Sc. Chemistry April 2007 Bio-Chemistry For Biologist Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ADV. ZOO.& PLA.BIO.&BIOTEC.

LM 10

FOURTH SEMESTER – APRIL 2007

CH 4202 – BIO-CHEMISTRY FOR BIOLOGIST

 

 

Date & Time: 19/04/2007 / 9:00 – 12:00      Dept. No.                                             Max. : 100 Marks

 

 

PART A

Answer all the questions.                                                                                            10×2=20

  1. What was the contribution of James B Sumner to biochemistry?
  2. What is feedback inhibition? Give an example.
  3. Mention the uses of glycogen.
  4. Explain isoelectric point.
  5. Draw the structure of cholesterol.
  6. What are the differences between DNA and RNA?
  7. Convert fructose into glucose.
  8. Define iodine value.
  9. Draw the structures of camphor and nicotine.
  10. What are essential fatty acids? Give examples.

PART B

Answer any eight questions.                                                                                        8×5=40

  1. How is the structure of fructose elucidated?
  2. Explain the factors influencing the enzymatic action.
  3. Describe the importance of macro and micronutrients.
  4. What are cephalins and plasmalogens? Explain.
  5. Explain the different types of soil.
  6. How are alkaloids isolated?
  7. Explain the replication of DNA.
  8. What is Line Weaver Burk plot? Mention its significance.
  9. Explain the classification of terpenes.
  10. Explain the mechanism of enzymatic action.
  11. Explain the secondary structure of proteins.
  12. How is the structure of DNA explained by Watson and Crick model?

PART C

Answer any four questions.                                                                                       4×10=40

  1. Draw and explain the structure of t-RNA.
  2. Describe the importance and uses of anthocyanines, flavones and flavanoids.
  3. Explain the enzymatic inhibition with examples.
  4. How is N-terminal of an amino acid determined by Edman and Sanger’s method?
  5. How is glucose converted to pyruvate? Explain.
  6. Explain the classification of enzymes with their functions and examples.

 

 

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