Kerala University 2009 B.Tech Bio-chemical Engineering Third Semester , - Question Paper

Third Semester B.Tech. Degree Examination, June 2009
(2003 Scheme)
03 – 305 : BIOCHEMISTRY – I (B)
Time : three Hours Max. Marks : 100
PART – A
I. ans all ques..
1) Write the specific colour reactions to distinguish the subsequent :
a) Carbohydrate b) Glycogen
c) Fructose d) Ribose
2) State whether the osazones formed by glucose, fructose and mannose are the
identical or not. Substantiate your ans.
3) Write the structure of a brain phospholipid and a glycolipid.
4) What is an isoenzyme. discuss with an example.
5) Write the structures of the subsequent :
a) Imino acid
b) An acidic amino acid
c) A basic amino acid
d) An aromatic amino acid.
6) Name the protein current in the subsequent :
a) Milk b) Egg c) Hair d) Wheat
7) describe Km and Vmax.
8) What can you infer from the provided code number : E C 2.7.3.2.
9) elaborate hydrogen bonds ? Briefly bring out their importance biologically.
10) Name four unusual bases current in t-RNA. (10×4=40)
PART – B
II. ans 1 ques. from every Module.
Module – I
11) Write the various classes of lipids with suitable examples.
OR
12) With the help of a diagram discuss the organelles of an animal cell.
Module – II
13) Write briefly on homoglycans and heteroglycans.
OR
14) Bring out the reactions during the replication of DNA.
Module – III
15) State the laws of thermodynamics and explain its applications in biology.
OR
16) explain on the various factors influenzing the velocity of an enzyme catalysed
reaction. (3×20=60)
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Earning:   Approval pending.