Bangalore University 2011-6th Sem B.Sc Biochemistry biochemstry, , 7, . - Question Paper

VI Semister Bsc,May 2011 MS-215
(semister scheme)
Biochemistry paper VII

time -3hours
max marks-60

part A

ans any six of the subsequent.each ques. carry two marks (6*2=12)

1. describe catabolism and anabolim.
2. Why catabolism is also known as convergent process?
3. What is aerobic metabolism?
4. Name the steps of glycolysis where ATP is consumed and mention enzymes involved.
5. Write the reaction of Tca cycle catalysed by fumarase.
6. provide the structure and function of carnitine.
7. Mention the role of epimerase & isomerase inb-oxidation of unsaturated fatty acid.
8. elaborate polyamines? provide examples.
9. describe photo phosphorylation.
10.What are ureotelic organisms?

part B

ans any eight of the subsequent.Each ques. carry six marks (8*6=48)

11.a) explain substrate level phosphorylation reaction of glycolysis. (4+2)
b) TCA cycle is to be amphibolic in nature.give cause

12.a) discuss oxidative decaroxylation reaction reaction of TCA cycle (4+2)
b) provide any two significance of HMP

13.a) explain energitics of the complete catabolism of a glucose molecule (4+2)
b) elaborate glycogen storage disorder?

14.a) State important biochemical modifications that occur in the uncontroled diabetes mellitus (4+2)
b) what is gluconeogenesis? mentio any two significance of it.

15.a) outline the biosynthesis of fatty acid containing even no of carbon atoms. (4+2)
b) provide the structure of cholestrol and mention any two function.

16.a) explain the energitics of stearic acid degradation. (3+3)
b) discuss the ormation of mevalonate from acetyl SCoA during cholestrol synthesis.

17.a) discuss the decaroxylation of L-glutamic acid and histidine.Mention the biological role of
products formed. (4+2)
b) what is deamination? mention the kinds.

18.a) discuss the biosynthesis of epinephrin rom tyrosine.
b) discuss the reaction o urea cycle where L-Arginine is formed (4+2)

19.a) discuss the disorders of aminoacid metaolism.
b) mention any two characteristic role of PKU (4+2)

20.a) outline the biosynthesis of pyrimidine nucleotides.
b) what is meant by orotic acid urea gout? (4+2)

21.a) how are PS-1 and PS-2 different?
b) what is C-4 pathway? (4+2)

22 a) write the reaction steps of non cyclic photophosphorylation (4+2)
b) what is compartmentalisation of metabolic pathway?

Earning:   Approval pending.