M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Microbiology
Core II MICROBIAL BIOCHEMISTRY
(CBCS 2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. What are peptidoglycans?
2. Short notes on carbohydrates classification.
3. Structure of haemoglobin.
4. Physical properties of amino acids.
5. Draw the flow chart for the cholesterol synthesis in
E.coli.
6. Account on outline of lipid classification.
7. What are the difference between lock key and induced
fit theory?
8. Short notes on co-enzymes.
9. Comments on action of cholera toxin.
10. Comments on Aflatoxin.
Sub. Code
530102
RW-874
2
ws2
Part B x 5 25)
Answer all questions choosing either or
11. Write about gluconeogenesis.
Or
Describe the events of pentose phosphate pathway.
12. Give an account on amino acids classification with
suitable examples.
Or
Explain about Ramachandran plot.
13. Describe the events of purine synthesis and
degradation.
Or
What are the steps involve in pyrimidine synthesis
degradation?
14. Derive the Henderson Hasselbach equation and
explain the factors affect it.
Or
Explain the effect of different factors on enzyme
activity.
15. Describe the biosynthesis and regulation of
penicillin.
Or
Discuss the involving steps in biosynthesis of
chlorophyll.
RW-874
3
ws2
Part C 10 30)
Answer any three questions.
16. Explain the complete metabolism of glucose in the
presence of oxygen.
17. Describe the structural classification of proteins with
illustrations and examples.
18. Detailed notes on fatty acid oxidation by and
method.
19. Give a detail account on different types of enzyme
inhibition with example.
20. Write the antibiotics classification based upon mode of
action with suitable example.
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