M.Sc. Zoology(Semester III) (CGPA) Examination, 2017
BIOCHEMISTRY
Day Date: Tuesday, 25-04-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
Note:1)Question number 1 and 2 are compulsory.
Attemptany two from question number 3,4 and 5
Q.1 Rewrite the following sentences by choosing the most
correct alternative given below.
14
G of a reaction is negative then the reaction is
At equilibrium Spontaneous
Endergonic Steady
inhibitor can bind only to free enzyme not to enzyme
substrate complex.
Competitive Uncompetitive
Non-competitive Mixed
From stoichiometry of oxidation phosphorylation one NADH
molecule produces ATP.
3 2.5
2 1.5
is an aromatic amino acid.
Alanine Proline
Arginine Tyrosine
Molecule acts as the secondary messenger in cell
signaling.
mRNA ATP
cAMP GDP
The enzymes enhance reaction rates by lowering
energies.
Activation Binding
Gibb's free Free
Lipids are stored in body mainly in the form of
Phospholipids Glycolipids
Triacylglycerides Fatty acids
Page 2 of 2
Q.2 Long Answer Type question. 14
Explain in detail immobilization of enzymes and add note on
applications of it.
Q.3 Answer the following
What is β-oxidation of lipid? Explain its reactions. 07
Discuss in detail glycogen metabolism. 07
Q.4 Explain the following.
Thermodynamic principle of biology. 05
Phospholipid biosynthesis. 05
microRNA 04
Q.5 Explain in short
Structure and role of monosaccharaides 07
Biosynthesis of cholesterol. 07
Q.6 Write short notes (Any Four) 14
Coenzymes
Sources of atoms in purines
Acidic amino acids
B-DNA
Biological energy transducers
Significance of Km and Vmax