Match the amino acid to its correct amino acid family.
1.
Arginine a.
3-Phosphoglycerate
2.
Glycine b. Oxaloacetate
3.
Tryptophan c. α-ketoglutarate
4.
Alanine d.
Phosphoenolpyruvate
5.
Threonin e. Pyruvate
6.
Glutamine is essential for cells because it:
a.
Incorporates oxygen into hemoglobin
b.
Allows the synthesis of ATP
c.
Incorporates inorganic nitrogen into cell material
d.
Allows the cell to cycle and excrete oxygen radicals
7.
Valine shares the same four enzymes at the end of its’
synthesis with:
a.
Methionine
b.
Leucine
c.
Isoleucine
d.
Glycine
8.
Which
characteristic of leucine allows it to modulate the passage of ion through
bacterial membranes and pores?
a.
Chirality on side chain
b.
Size of side chain
c.
Hydrophilic side chain
d.
Hydrophobic side chain
9.
During phenylalanine biosynthesis, what is the
importance of the enzyme chorismate mutase?
a.
Hydrolysis of chorismate
b.
Catalyze a Claisen rearrangement of chorismate to form
prephenate
c.
Decarboxylation of prephenate to phenylpyruvate
d.
Transamination of phenylpyruvate
10. Which
amino acid is converted into catecholmines used in the nervous system?
a.
Tryptophan
b.
Valine
c.
Tyrosine
d.
Isoleucine
11. What
additional molecule is needed in the synthesis of isoleucine in the
asetolactate synthase step?
a.
Acetyl CoA
b.
Pyruvate
c.
ATP
d.
Glutamate
12. What
are the two compounds that can be interconverted with glutamate (via one
conversion reaction)?
a.
Glutamine, oxaloacetate
b.
Glutamine, α-ketoglutarate
c.
Aspargine, α-ketoglutarate
d.
Aspargine, oxaloacetate
e.
None of the above
13. Asparagine
is used to:
a.
Link oligosaccharides to final protein acceptors
b.
Synthesize N-acetyl glucosamine
c.
Assimilate nitrogen
d.
Counteract free radical damage
14. Histidine
plays a physiological role in which of the following activities:
a.
Catalytic triads
b.
Proton shuffle
c.
Histidine kinases
d.
All of the above
15. Serine
is a precusor for:
a.
Glycine
b.
Cysteine
c.
Phenylalanine
d.
A and B
e.
All of the above
a.
True
b.
False
17. Asp13 is the location of phosphorylation
in the CheY protein in bacteria chemotaxis.
a.
True
b.
False
18. Due
to its rigidity and small loss in conformational entropy upon exposure to high temperatures,
proline tends to be more abundant in thermophilic organisms.
a.
True
b.
False
19. Methionine
is in a derivative form in bacteria, called fMet, to initiate translation.
a.
True
b.
False
20. The
one letter abbreviation for Lysine is L.
a.
True
b.
False
