BIOCHEM MODULE 8 EXAM CONCLUDING
REVIEW SHEET PRACTICE SOLUTION
BUNDLED FULLY VERIFIED ONE
HUNDRED PERCENT PASS GUARANTEED
⩥ Which of the following lists the enzymes (in order) are required to
transport a molecule of acetyl-CoA from the mitochondrion to the
cytosol while returning the "acetyl-CoA acceptor" back to the
mitochondrion?
a.
citrate synthase, citrate lyase, malate dehydrogenase, malic enzyme
b.
citrate synthase, citrate lyase, malate dehydrogenase, pyruvate
carboxylase
c.
citrate synthase, citrate lyase, malate dehydrogenase, pyruvate
carboxylase, malic enzyme
d.
citrate synthase, citrate lyase, pyruvate carboxylase.
Answer: a.
citrate synthase, citrate lyase, malate dehydrogenase, malic enzyme
,⩥ Which of the following moiety in the fatty acid synthase complex is
directly associated with the vitamin B5 (pantothenic acid) containing a
cystein sulfhydryl group?
a.
Beta-ketoacyl synthase
b.
Malonyl-CoA transferase
c.
Acyl carrier protein
d.
Beta-ketoacyl reductase.
Answer: c.
Acyl carrier protein
⩥ Which of the following molecules provides energy for the formation
of carboxybiotin in fatty acid biosynthesis?
a.
NADPH
b.
NADH
c.
ATP
d.
,FADH2
e.
ADP.
Answer: c.
ATP
⩥ Which of the following proteins is an integral component of the
enzyme fatty acid synthase multienzyme complex?
a.
Carnitine carrier protein
b.
Acyl carrier protein
c.
Cholesteryl ester transfer protein
d.
Biotin carrier protein.
Answer: b.
Acyl carrier protein
⩥ Which of the following statements about the beta-oxidation of fatty
acids IS TRUE?
a.
, The free fatty acids with more than 14 carbon atoms must be converted
to their corresponding thioesters before the process of beta-oxidation
commences.
b.
Two moles of acetyl-CoA are produced per moles of palmitic acid
oxidized
c.
About 1200 ATP molecules are generated from the beta-oxidation of a
20-carbon fatty acid
d.
Two NADH are produced per acetyl-CoA.
Answer: a.
The free fatty acids with more than 14 carbon atoms must be converted
to their corresponding thioesters before the process of beta-oxidation
commences.
⩥ Which reaction activates beta-hydroxymethylglutaryl-CoA (HMG-
CoA) reductase?
a.
Dephosphorylation of HMG-CoA reductase
b.
Acetylation of HMG-CoA reductase
c.
Phosphorylation of HMG-CoA reductase
REVIEW SHEET PRACTICE SOLUTION
BUNDLED FULLY VERIFIED ONE
HUNDRED PERCENT PASS GUARANTEED
⩥ Which of the following lists the enzymes (in order) are required to
transport a molecule of acetyl-CoA from the mitochondrion to the
cytosol while returning the "acetyl-CoA acceptor" back to the
mitochondrion?
a.
citrate synthase, citrate lyase, malate dehydrogenase, malic enzyme
b.
citrate synthase, citrate lyase, malate dehydrogenase, pyruvate
carboxylase
c.
citrate synthase, citrate lyase, malate dehydrogenase, pyruvate
carboxylase, malic enzyme
d.
citrate synthase, citrate lyase, pyruvate carboxylase.
Answer: a.
citrate synthase, citrate lyase, malate dehydrogenase, malic enzyme
,⩥ Which of the following moiety in the fatty acid synthase complex is
directly associated with the vitamin B5 (pantothenic acid) containing a
cystein sulfhydryl group?
a.
Beta-ketoacyl synthase
b.
Malonyl-CoA transferase
c.
Acyl carrier protein
d.
Beta-ketoacyl reductase.
Answer: c.
Acyl carrier protein
⩥ Which of the following molecules provides energy for the formation
of carboxybiotin in fatty acid biosynthesis?
a.
NADPH
b.
NADH
c.
ATP
d.
,FADH2
e.
ADP.
Answer: c.
ATP
⩥ Which of the following proteins is an integral component of the
enzyme fatty acid synthase multienzyme complex?
a.
Carnitine carrier protein
b.
Acyl carrier protein
c.
Cholesteryl ester transfer protein
d.
Biotin carrier protein.
Answer: b.
Acyl carrier protein
⩥ Which of the following statements about the beta-oxidation of fatty
acids IS TRUE?
a.
, The free fatty acids with more than 14 carbon atoms must be converted
to their corresponding thioesters before the process of beta-oxidation
commences.
b.
Two moles of acetyl-CoA are produced per moles of palmitic acid
oxidized
c.
About 1200 ATP molecules are generated from the beta-oxidation of a
20-carbon fatty acid
d.
Two NADH are produced per acetyl-CoA.
Answer: a.
The free fatty acids with more than 14 carbon atoms must be converted
to their corresponding thioesters before the process of beta-oxidation
commences.
⩥ Which reaction activates beta-hydroxymethylglutaryl-CoA (HMG-
CoA) reductase?
a.
Dephosphorylation of HMG-CoA reductase
b.
Acetylation of HMG-CoA reductase
c.
Phosphorylation of HMG-CoA reductase
