Dr MGR Educational and Research Institute 2011 M.B.B.S FIRST Revised (Non-Semester) Regulations V - BIOCHEMISTRY - I Q.PCode: 524055 Time : Three hours - Question Paper

August 2011
FIRST M.B.B.S. DEGREE exam.
Revised (Non-Semester) Regulations
Paper V - BIOCHEMISTRY - I
Q.P. Code: 524055
Time : 3 hours Maximum : 100 marks
I. Essay ques. : (2 x 10 = 20)

1. define in detail TCA cycle and the energetics of the identical. Justify why TCA cycle is
called an amphibolic cycle.

2. define in detail the components and chemiosmotic theory of electron transport chain.

II. Write short notes on : (10 x five = 50)

1. Role of Niacin as Coenzyme.

2. Classification of hyperlipidemias & their clinical importance.

3. Sphingolipidoses.

4. Biochemical role of Vitamin C.

5. Cori's cycle and Glucose Alanine cycle.

6. High Density Lipoprotein cycle.

7. Glycogenolysis.

8. Isomerism in carbohydrates.

9. Balanced Diet.

10. Fructose intolerance

III Short ans ques. : (15 x two = 30)

1. Markers for lysosomes and mitochondria.

2. Fluorosis.

3. Role of Apo CII.

4. describe metalloenzymes with two examples.

5. Pulmonary surfactant - Structure and clinical importance.

6. Iodine number and its importance.

7. What is the function of Lipoprotein lipase?

8. Structure of lecithin.

9. Net Protein Utilization.

10. Chondroitin sulphate - Structure.

11. Double Reciprocal plot.

12. Alkaline phosphatase as a diagnostic tool.

13. elaborate the various forms of calcium in blood?

14. RDA and functions of Iodine.

15. Why Arachidonic acid is not considered 'purely' an essential fatty acid?

Earning:   Approval pending.