Exam Details
Subject | natural products and introductory biochemistry — (elective iii) | |
Paper | ||
Exam / Course | m.sc in chemistry | |
Department | ||
Organization | alagappa university | |
Position | ||
Exam Date | April, 2017 | |
City, State | tamil nadu, karaikudi |
Question Paper
M.Sc. DEGREE EXAMINATION, APRIL 2017
Second Semester
Chemistry
NATURAL PRODUCTS AND INTRODUCTORY
BIOCHEMISTRY — (ELECTIVE III)
(2015 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. How can cyanidin chloride be obtained from cyanin
chloride? What are the potassium hydroxide fusion
products of cyaniding chloride?
2. How can uric acid be converted to purine?
3. Indicate how oestrone can be converted to
oestradiol and ethinyloestadiol.
4. Bring out the structural resemblances between
teststerone and audrosterone.
5. How can it be shown that bisabolene and Zingeberene
have the same carbon skelton?
Sub. Code
536504
RW-185
2
ws2
6. What are the complete Hoffmann exhaustive methylation
process led products of pyrrolidine and piperidine?
7. Write down the structures of the two lactams formed by
the treatment of cephalosporin C by 1.25 N Hcl.
8. Write the products obtained when methyl ether of
pyridoxine is carefully oxidized by permanganate and
strongly oxidized by permanganate.
9. What are lipids? How are they classified?
10. Distinguish between catabolism and anabolism.
Part B x 5 25)
Answer all questions, choosing either or
11. Explain how oxazole can be prepared. Describe its
aromatic character. Discuss the reactions of oxazole.
12. What are the differences between CD and ORD
and plain curve and cotton effect curve?
Or
Compare the octant rule and halo ketone rule for
predicting the sign of the cotton effect curve of
chiral carbonyl compounds.
RW-185
3
ws2
13. Write a note on bio synthesis of alkaloids.
Or
Establish the structure of quininic acid.
14. Describe the structural featuers of penicillamine.
Or
What are the units present in streptomycin? How
can it be shown that streptose has L-Xyls
configuration?
15. Write a note on TCA cycle.
Or
Explain the role of ATP as energy carrier.
Part C x 10 30)
Answer any three questions.
16. Explain how indole, caffiene, imidazole and pyrimidine
can be prepared.
17. Establish the positions of hydroxyl group, double bond,
angular methyl groups and side chain in cholesterol.
18. Establish the structure of abietic acid.
19. Establish the structure of thiamine chloride
hydrochloride.
20. Write note son:
Replication of DNA
Glycolysis
Enzymes as catalysts.
———————
Second Semester
Chemistry
NATURAL PRODUCTS AND INTRODUCTORY
BIOCHEMISTRY — (ELECTIVE III)
(2015 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. How can cyanidin chloride be obtained from cyanin
chloride? What are the potassium hydroxide fusion
products of cyaniding chloride?
2. How can uric acid be converted to purine?
3. Indicate how oestrone can be converted to
oestradiol and ethinyloestadiol.
4. Bring out the structural resemblances between
teststerone and audrosterone.
5. How can it be shown that bisabolene and Zingeberene
have the same carbon skelton?
Sub. Code
536504
RW-185
2
ws2
6. What are the complete Hoffmann exhaustive methylation
process led products of pyrrolidine and piperidine?
7. Write down the structures of the two lactams formed by
the treatment of cephalosporin C by 1.25 N Hcl.
8. Write the products obtained when methyl ether of
pyridoxine is carefully oxidized by permanganate and
strongly oxidized by permanganate.
9. What are lipids? How are they classified?
10. Distinguish between catabolism and anabolism.
Part B x 5 25)
Answer all questions, choosing either or
11. Explain how oxazole can be prepared. Describe its
aromatic character. Discuss the reactions of oxazole.
12. What are the differences between CD and ORD
and plain curve and cotton effect curve?
Or
Compare the octant rule and halo ketone rule for
predicting the sign of the cotton effect curve of
chiral carbonyl compounds.
RW-185
3
ws2
13. Write a note on bio synthesis of alkaloids.
Or
Establish the structure of quininic acid.
14. Describe the structural featuers of penicillamine.
Or
What are the units present in streptomycin? How
can it be shown that streptose has L-Xyls
configuration?
15. Write a note on TCA cycle.
Or
Explain the role of ATP as energy carrier.
Part C x 10 30)
Answer any three questions.
16. Explain how indole, caffiene, imidazole and pyrimidine
can be prepared.
17. Establish the positions of hydroxyl group, double bond,
angular methyl groups and side chain in cholesterol.
18. Establish the structure of abietic acid.
19. Establish the structure of thiamine chloride
hydrochloride.
20. Write note son:
Replication of DNA
Glycolysis
Enzymes as catalysts.
———————
Other Question Papers
Subjects
- chemistry of inorganic complexes
- elective – corrosion chemistry
- elective — green chemistry
- elective — industrial chemistry
- elective — molecular photochemistry
- elective — pharmaceutical chemistry
- elective — polymer chemistry
- inorganic chemistry
- inorganic chemistry - ii
- inorganic chemistry — iii
- instrumental methods of analysis
- natural products and introductory biochemistry — (elective iii)
- organic chemistry – iii
- organic chemistry — i
- organic chemistry — ii
- physical chemistry
- physical chemistry – i
- physical chemistry – iii
- physical chemistry — ii
- quantum chemistry group theory kinetics and surface chemistry
- reactive intermediates photochemical and concerted reactions
- structural inorganic chemistry and photochemistry