Biochemistry – Set 2 – Structure and Function of Protein
1. Same charged two proteins separation is done by –
a) Agrose
b) DEAE Cellulose
c) Sephadex
d)None
2. Iron in the haemoglobin is held by
a) Polar bonds
b) Non polar bonds
c) Co- ordinate bonds
d) Covalent bonds
3. Vibrational property of proteins is due to……………..structure
a) Primary
b) Secondary
c) Tertiary
d) Quaternary
4. Tertiary structure of proteins is maintained by all except
a) H2 bond
b) Hydrophobic bond
c) Ionic bond
d) Disulpide bond
e) None
5. The colour of cheloglobin is
a) Red
b) Pink
c) Orange
d) Green
6. Sulphaemoglobin has a……….. colour
a) Cherry Red
b) Pink KERALA 88)
c) Dirty Green
d)Blue
7.Siderophyllin is______ globulin
a) Alpha- 1
b) Alpha -2
c) Beta
d) Gamma
8.Helical content of polypeptides can be estimated
a) By comparison of viscocity with polyproline
b) By analysis for related sheet structure
c) Only by X- ray crystallography
d) From optical rotatory
9. In determining protein structure, performic acid is used to
a) Identify N- terminal residue
b) Identify C- terminal residue
c) Denature protein
d) Reduce disulphide bonds
e) Oxidize disulphide bonds
10. In electrophoresis, if the pH is above isoelectric point a protein will
a) Precipitate
b) Not move
c) Form a zwitterion
d) Migrate to anode
e) Migrate to cathode
