Download JNTUK B.Pharm 4-1 2020 Feb B134103 Chemistry Of Natural Products Question Paper

Download JNTUK (Jawaharlal Nehru Technological University Kakinada / JNTU-Kakinada) B.Pharmacy (Bachelor of Pharmacy) 4-1 (4th Year 1st Sem) 2020 Feb B134103 Chemistry Of Natural Products Previous Question Paper

Code No: B134103

IV B. Pharmacy I Semester Advanced Supplementary Examinations, February - 2020
CHEMISTRY OF NATURAL PRODUCTS
Time: 3 hours Max. Marks: 70

Note: 1. Question paper consists of two parts (Part-A and Part-B)
2. Answering the question in Part-A is Compulsory
3. Answer any THREE Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART ?A
1. a) What are carbohydrates? Discuss their general properties. (4M)
b) Write chemical tests for identification of proteins. (3M)
c) Write in brief on chemical constitution of fixed oils. (4M)
d) Write isoprene and modified isoprene rule with examples. (4M)
e) Write general tests for identification of alkaloids. (3M)
f) Write structure and chemical test for (i) uric acid (ii) phenyl alanine

(4M)
PART ?B

2. a) Write a note on method of isolation and uses of starch. (6M)
b) Classify proteins with examples. Explain the methods used for amino acid
sequencing.

(10M)
3. a) Write about chemical tests for steroids.

(6M)

(10M) b) Write short notes on
(i) Saponification value (ii) biuret test

4. a) Discuss the structure and synthesis of caffeine, theophylline. (8M)
b) Write about general reactions and degradation of proteins.

(8M)
5. a) Discuss the methods used for isolation of terpenes (6M)
b) Write in detail on chemistry of camphor.

(10M)
6. Explain the chemistry of (16M)
(i) Ephedrine (ii) Papaverine

7. a) Compare the structures of cholesterol and ergosterol. (4M)
b) Write in detail on chemistry and biological significance of thiamine. (12M)







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