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P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No. :.………………… Name :.…………………
Second Semester Career Related B.Sc. Degree Examination, June 2016
First Degree Programme under CBCSS Complementary Course: Biochemistry II (for Botany and Biotechnology)
AUBB231: General Biochemistry
Time: 3 Hours Max. Marks: 80
SECTION A
Answer ALL questions in one or two sentences.
1. Name of protein found in egg white.
2. Give any two functions of carbohydrates.
3. Differentiate between an aldohexose and a ketohexose with examples.
4. What is a glycoside
5. What are simple lipids
6. What are essential fatty acids Give examples.
7. What are plasmalogens
8. Write down the structure of cholesterol. What is the name of cyclic steroid nucleus
9. What is a zwitter ion
10. What are the nitrogenous bases present in RNA
(10 × 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding a paragraph.
11. What are the characteristics of peptide bond
12. Write down the nutritional classification of proteins.
13. Differentiate between phospho proteins and nucleo proteins. Give examples.
14. What are purines and pyramidines
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15. What is dipalmitoyl lecithin What is its biological significance
16. What is acid number What is its importance
17. Write notes on disulphide bond.
18. What are anomers Label the anomeric C atom in glucose.
19. What are transport proteins Give examples.
20. Differentiate between mono and di sacharides with suitable examples.
21. What is a phosphodiester linkage
22. Define specific activity. What is its significance
× 2 16 Marks)
SECTION C
Short essay type Answer any SIX questions.
23. What are the factors affecting enzyme activity
24. Explain the structure of different types of RNA.
25. Write down the structure of sucrose and maltose. What is the difference between the two
26. Classify amino acids based on metabolic fate with suitable examples.
27. What are the functions of lipids
28. Give a brief account of heteropolysacharides with examples.
29. Explain osazone formation. What is the significance of the reaction
30. Differentiate between saponification number and iodine number.
31. Write notes on secondary structure of proteins.
× 4 24 Marks)
SECTION D
Long essay type Answer any TWO questions.
32. Give a detailed account of structure of starch and glycogen. What are the functions of these polysaccharides
33. Explain the classification of lipids with suitable examples.
34. Explain Watson and Crick model of DNA.
35. Explain different types of enzyme regulation.
× 15 30 Marks)