Dr MGR Educational and Research Institute 2010 M.B.B.S FIRST Revised (Non-Semester) Regulations V - BIOCHEMISTRY - I QPCode : 524055 - Question Paper

February 2010
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 15 = 30)

1. describe enzymes. Classify Enzymes with suitable examples. discuss the concept of active site of enzymes.

2. define the steps of HMP shunt pathway. What is its significance? How is it regulated?

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

1. Nutritional importance of proteins.

2. define the requirement, sources, metabolic functions and deficiency manifestations of folic acid.

3. discuss with a neat tagged diagram of fluid mosaic model of
biological membrane.

4. Total parenteral nutrition and its importance.

5. t - RNA.

6. discuss the metabolism and functions of HDL.

7. elaborate glycoproteins? provide 3 examples and its importance.

8. Chemiosmotic theory.

9. Rapaport leubering shunt pathway and its significance.

10. elaborate Nucleotides? Name any 3 biologically important
nucleotides and their importance.

III. Short ans ques. : (10 x two = 20)

1. Why sucrose is called a non reducing disaccharide?

2. Name the essential fatty acids.

3. Name any 4 biologically important compounds derived from cholesterol.

4. elaborate phospholipids? provide 2 examples.

5. Name the essential aminoacids.

6. Mention any 2 biological functions of albumin.

7. Name the aminoacids needed for purine biosynthesis.

8. Sickle cell hemoglobin.

9. Specific dynamic action.

10. Write the principle and significance of biuret test.

Earning:   Approval pending.