Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) BT-Bio Technology 2020 December 3rd Sem 76948 Biochemistry Previous Question Paper
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (BT) (2018 Batch) (Sem.?3)
BIOCHEMISTRY
Subject Code : BTBT304-18
M.Code : 76948
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Write briefly :
1.
Why does the starch appear blue when iodine solution is added to it?
2.
How are anomers different from epimers? Give suitable example.
3.
What are Fat Soluble Vitamins?
4.
Which amino acids exhibit an absorbance at 280 nm?
5.
Why does glucose molecule get phosphorylated in glycolysis?
6.
Which enzymes are present in aerobic nitrogen fixing organisms? What is their role?
7.
During fatty acid synthesis how is acetyl CoA transported to cytosol?
8.
How is urea cycle linked to citric acid cycle?
9.
What is Glyoxylate Cycle?
10. What are essential Fatty Acids? Give example of an essential fatty acid.
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SECTION-B
11. Highlight the differences between electron transport chain of Mitochondrion and
Chloroplasts.
12. Write a brief account on Pyruvate dehydrogenase complex and its role in carbohydrate
metabolism.
13. Explain the role of Carnitine in fatty acid oxidation.
14. Differentiate between C3 and C4 pathway in plants.
15. How is fatty acid molecule synthesised starting from Acetyl CoA?
SECTION-C
16. Discuss the chemiosmotic coupling hypothesis given by Peter Mitchell and explain the
mechanism of ATP synthesis.
17. Discuss the steps involved in isolation and purification of protein from soyabean seeds.
18. Elaborate in detail the various components involved in the Electron Transport Chain.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 13 February 2021