Download RGUHS BNYS 2015 April 1st Year Biochemistry Question Paper

Rajiv Gandhi University of Health Sciences

I Year B.N.Y.S Degree Examination – APRIL 2015

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Time: Three Hours Max. Marks: 80 Marks

BIOCHEMISTRY

QP Code: 2529

(QP contains two pages)

Your answers should be specific to the questions asked.

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Draw neat, labeled diagrams wherever necessary.

(Note - Answer Section-A and Section-B in separate answer booklets)

Section - A 10 X 1 = 10 Marks

1. 5'-Terminus of mRNA molecule is capped with
   1. Guanosine triphosphate
   2. 7-Methylguanosine triphosphate

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   3. Adenosine triphosphate
   4. Adenosine diphosphate
2. Which of the following carbohydrate is a dietary fibre
   1. Glycogen
   2. Starch

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   3. Inulin
   4. Cellulose
3. Normal level of serum cholesterol
   1. 70-110 mg/dl
   2. 9-11 mg/dl

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   3. 200-240 mg/dl
   4. 20-40 mg/dl
4. All the following are Sphingolipids, except
   1. Sphingomyelin
   2. Cerebroside

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   3. Ganglioside
   4. Lecithin
5. During denaturation of the protein following bonds are disrupted, except
   1. Hydrogen
   2. Hydrophobic

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   3. Peptide
   4. Sulphide
6. Beriberi is caused by the deficiency of
   1. Thiamine
   2. Riboflavin

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   3. Thymine
   4. Folic acid
7. Normal adult hemoglobin (A1) has the following polypeptide chains
   1. a2ß2
   2. a2?2

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   3. a2d2
   4. a2e2
8. Cytochrome oxidase of Electron transport chain is inhibited by
   1. Cyanide
   2. Sulphide

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   3. Sulfite
   4. Sulfate
9. Lesch Nyhan syndrome is characterized by the deficiency of
   1. PRPP synthase
   2. HGPRTase

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   3. Alanine Transaminase
   4. Tyrosinase
10. Respiration is directly linked up with the buffer systems of
    1. Bicarbonate
    2. Phosphate

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    3. Protein
    4. Hemoglobin

Section B 2 X 10 = 20 Marks

LONG ESSAYS (Answer any two)

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11. Enumerate the reactions of Citric acid cycle. Add a note on its energetics.
12. What is the normal level of fasting blood glucose? Explain the hormonal regulation of blood glucose.
13. Explain about the dietary sources, RDA, absorption, transport, storage, biochemical functions, deficiency and toxicity manifestations of Iron.

10 X 5 = 50 Marks

SHORT ESSAYS (Answer any ten)

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14. Plasma proteins
15. Transamination.
16. Genetic code.
17. Basal metabolic rate
18. Electron transport chain

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19. Essential fatty acids
20. Biochemical functions of Vitamin A.
21. Role of Buffers in the regulation of blood pH
22. What are enzymes? Classify them with examples.
23. List the kidney function tests. Explain any one of them.

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24. What is the normal level of serum uric acid? How it is synthesized
25. What is fatty liver? Explain what conditions are causing fatty liver. Add a note on lipotropic factors

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