©Themoon EXAM SOLUTIONS
25/11/2024 09:27AM
Biochemistry 301 - Exam 3 MCQs and
Answers
"Mad Hatters" were mad because of what? - Answers✓✓heavy metal poisoning
Using the "E1, E2, E3" terminology for Pyruvate DH Complex - TPP is found at the active site
of which enzyme? - Answers✓✓E1
If carbon one (the carboxyl carbon) of Pyruvate is labeled with carbon-14, and then the
Pyruvate is put through one "turn" of the Citric Acid Cycle, which carbon(s) of Oxaloacetate
will be labeled?
Pick as many choices as are necessary. - Answers✓✓none, it is lost as CO2
"Substrate Level Phosphorylation" means making triphosphates (ATP or GTP) just using
enzymes, and not using electron transport. The only example n the Citric Acid Cycle is
catalyzed by: - Answers✓✓Succinyl CoA Synthetase
An important factor in the linkage between electron transport and proton pumping is the fact
that one molecule can easily move hydrogen across the mitochondrial membrane - namely -
Answers✓✓Ubiquinone
"Sugar can make you fat, but fat can't make you sweet" is true of humans, but not of organisms
that have what? - Answers✓✓the Glyoxalate cycle
Cyanide blocks what? - Answers✓✓Complex IV
, ©Themoon EXAM SOLUTIONS
25/11/2024 09:27AM
The simplest Iron-Sulfur clusters just require a protein with a cavity lined with residues of
which amino acid residue? - Answers✓✓cys
Complex IV delivers electrons from cytochrome c to O2 one at a time, producing peroxide and
superoxide in the process - Answers✓✓False
The Pentose Phosphate Pathway is most active in which tissue? - Answers✓✓adipose
The "Thirty Carbon Reaction" refers to conversion of 6 Ribose-5-P to 5 Fructose-6-P and the
reverse of that, with no decarboxylations. This conversion would utilize - Answers✓✓only the
non-oxidative branch of PPP
Most tissues in the human body use the Glycerol Phosphate Shuttle. What organs use the
Malate Aspartate Shuttle instead? - Answers✓✓Heart, liver
If Fructose-6-P and Erythrose-4-P were reacted with Transketolase and TPP in the lab, what
sugars would result? - Answers✓✓Erythrose-4-P and Fructose-6-P
The mechanism of Transaldolase is about the same as Aldolase. But the mechanism of
Transketolase involves covalent attachment of substrate to - Answers✓✓Thiamine
Pyrophosphate
Pamaquine-Induced Hemolytic Anemia is caused by a deficiency of - Answers✓✓G6PDH
25/11/2024 09:27AM
Biochemistry 301 - Exam 3 MCQs and
Answers
"Mad Hatters" were mad because of what? - Answers✓✓heavy metal poisoning
Using the "E1, E2, E3" terminology for Pyruvate DH Complex - TPP is found at the active site
of which enzyme? - Answers✓✓E1
If carbon one (the carboxyl carbon) of Pyruvate is labeled with carbon-14, and then the
Pyruvate is put through one "turn" of the Citric Acid Cycle, which carbon(s) of Oxaloacetate
will be labeled?
Pick as many choices as are necessary. - Answers✓✓none, it is lost as CO2
"Substrate Level Phosphorylation" means making triphosphates (ATP or GTP) just using
enzymes, and not using electron transport. The only example n the Citric Acid Cycle is
catalyzed by: - Answers✓✓Succinyl CoA Synthetase
An important factor in the linkage between electron transport and proton pumping is the fact
that one molecule can easily move hydrogen across the mitochondrial membrane - namely -
Answers✓✓Ubiquinone
"Sugar can make you fat, but fat can't make you sweet" is true of humans, but not of organisms
that have what? - Answers✓✓the Glyoxalate cycle
Cyanide blocks what? - Answers✓✓Complex IV
, ©Themoon EXAM SOLUTIONS
25/11/2024 09:27AM
The simplest Iron-Sulfur clusters just require a protein with a cavity lined with residues of
which amino acid residue? - Answers✓✓cys
Complex IV delivers electrons from cytochrome c to O2 one at a time, producing peroxide and
superoxide in the process - Answers✓✓False
The Pentose Phosphate Pathway is most active in which tissue? - Answers✓✓adipose
The "Thirty Carbon Reaction" refers to conversion of 6 Ribose-5-P to 5 Fructose-6-P and the
reverse of that, with no decarboxylations. This conversion would utilize - Answers✓✓only the
non-oxidative branch of PPP
Most tissues in the human body use the Glycerol Phosphate Shuttle. What organs use the
Malate Aspartate Shuttle instead? - Answers✓✓Heart, liver
If Fructose-6-P and Erythrose-4-P were reacted with Transketolase and TPP in the lab, what
sugars would result? - Answers✓✓Erythrose-4-P and Fructose-6-P
The mechanism of Transaldolase is about the same as Aldolase. But the mechanism of
Transketolase involves covalent attachment of substrate to - Answers✓✓Thiamine
Pyrophosphate
Pamaquine-Induced Hemolytic Anemia is caused by a deficiency of - Answers✓✓G6PDH
