B.Sc-BIOTECHNOLOGY 3rd Sem BIOCHEMISTRY AND BIOPHYSICS(Bangalore University, Bangalore-2009)

III sem bsc. examination , nov/dec 2009.
BIOTECHNOLOGY -III
BIOCHEMISTRY AND BIOPHYSICS.

instructions:

I) part I and part II must be answered in seperate booklets.
II) draw the structures and labelled diagrams wherever necessary.

PART I
(biochemistry)
section A

I) answer any four of the following :- (4*2=8)

1) peptide chain.
2) thiamine.
3) zwitter ion.
4) saponification.
5) coenzyme.

section B

II) answer any two of the following:- (2*6=12)

6) explain the D and L forms of carbohydrates with example.
7) give an account on properties of amino acids.
8) explain IUB system of enzyme classification.

sction C

III) answer any two of the following:- (2*10=20)

9) write the dietary source and clinical significance of vitamin B complex.
10) give the classification of proteins based on structure and function.
11) explain the effect of pH and substrate concentration of an enzyme activity.
12) describe the different types of fatty acids with examples.

part II
(biophysics)
section A

I) answer any two of the following:- (2*5=10)

1) give a note on hydrogen bond and peptide bond.
2) describe the measurement of radioactivity by scintallation counter.
3) write the principle and applications of ultracentrifugation.

section B

II) answer any one of the following:- (1*10=10)

4) explain the laws of thermodynamics and their limitations.
5) give abrief account on paper chromatography.

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