1. Glycogenin is
a) Uncoupler of oxidative phosphorylation
b) Polymer of glycogen molecules
c) Protein primer for glycogen synthesis
d) Intermediate in glycogen breakdown
2. During starvation, ketone bodies are used
as a fuel by
a) Erythrocytes
b) Brain
c) Liver
d) All of these
3. Animal fat is in general
a) Poor in saturated and rich in polyunsaturated
fatty acids
b) Rich in saturated and poor in polyunsaturated
fatty acids
c) Rich in saturated and polyunsaturated fatty
acids
d) Poor in saturated and polyunsaturated fatty
acids
4. All proteins contain the
a) Same 20 amino acids
b) Different amino acids
c) 300 Amino acids occurring in nature
d) Only a few amino acids
5. Proteins contain
a) Only L- α - amino acids
b) Only D-amino acids
c) DL-Amino acids
d) Both (A) and (B)
6. The optically inactive amino acid is
a) Glycine
b) Serine
c) Threonine
d) Valine
7. At neutral pH, a mixture of amino acids
in solution would be predominantly:
a) Dipolar ions
b) Nonpolar molecules
c) Positive and monovalent
d) Hydrophobic
8. The true statement about solutions of
amino acids at physiological pH is
a) All amino acids contain both positive and
negative charges
b) All amino acids contain positively charged
side chains
c) Some amino acids contain only positive
charge
d) All amino acids contain negatively charged
side chains
9. pH (isoelectric pH) of alanine is
a) 6.02
b) 6.6
c) 6.8
d) 7.2
10. Since the pK values for aspartic acid are
2.0, 3.9 and 10.0, it follows that the
isoelectric (pH) is
a) 3.0
b) 3.9
c) 5.9
d) 6.0