Rutgers Murphy Biochem Exam 2 Questions
and Answers
Question 1
An enzyme family called the _________ catalyzes the phosphorylation of hexoses in the
body.
Hexolysases
Phosphorolysases
Hexokinases
Glucokinases
Phosphofructokinases
Correct Answer
Hexokinases
Question 2
Lipolysis is used to
Degrade triacylglycerols
Prepare triacylglycerols for excretion
Remove lipid from membrane
Cleave fatty acids into two carbon units
Convert fatty acids to glucose
Correct Answer
Degrade triacylglycerols
Page 1 of 25
,Question 3
Which of the following is not a homoglycan?
Cellulose
Glycogen
Starch
Heparin
Amylose
Correct Answer
Heparin
Question 4
The presence of which of the following molecules indicates that the cell has sufficient
energy reserves?
ATP
Citrate
ADP
Fructose-1,6-biphosphate
Both A and B are correct
Correct Answer
Both A and B are correct
Question 5
What is the major mechanistic difference in purine and pyrimidine biosynthesis?
Purines are much simpler than pyrimidines
Pyrimidines utilize amino acids during synthesis
Purines are synthesized on the ring of ribose
IMP is formed in both pathways
Pyrimidine synthesis is performed before purine
Correct Answer
Purines are synthesized on the ring of ribose
Page 2 of 25
, Question 6
The intermediates in fatty acid synthesis are linked through a _______ linkage to ACP
Thgioester
Amide
Ester
Acetal
Ether
Correct Answer
Thioester
Question 7
The double bonds in naturally occurring fatty acids are usually ______ isomers
Correct Answer
Cis
Question 8
The one with the photo
FeS1, cyta, HemeB4, FADH2, cyt1A1, FeS2, UQ, cytb, O2
FeS1, cyta, HemeB4, FADH2, cyt1A1, O2,, FeS2, UQ, cytb
FeS1, cytb, HemeB4, FADH2, cyt1A1, FeS2, UQ, cyta, O2
FeS1, cyta, FADH2, cyt1A1, FeS2, UQ, cytb, O2, HemeB4
Correct Answer
FeS1, cyta, HemeB4, FADH2, cyt1A1, FeS2, UQ, cytb, O2
Question 9
Fatty acid synthesis begins with the carboxylation of acetyl CoA to form _________
Correct Answer
Malonyl-CoA
Page 3 of 25
and Answers
Question 1
An enzyme family called the _________ catalyzes the phosphorylation of hexoses in the
body.
Hexolysases
Phosphorolysases
Hexokinases
Glucokinases
Phosphofructokinases
Correct Answer
Hexokinases
Question 2
Lipolysis is used to
Degrade triacylglycerols
Prepare triacylglycerols for excretion
Remove lipid from membrane
Cleave fatty acids into two carbon units
Convert fatty acids to glucose
Correct Answer
Degrade triacylglycerols
Page 1 of 25
,Question 3
Which of the following is not a homoglycan?
Cellulose
Glycogen
Starch
Heparin
Amylose
Correct Answer
Heparin
Question 4
The presence of which of the following molecules indicates that the cell has sufficient
energy reserves?
ATP
Citrate
ADP
Fructose-1,6-biphosphate
Both A and B are correct
Correct Answer
Both A and B are correct
Question 5
What is the major mechanistic difference in purine and pyrimidine biosynthesis?
Purines are much simpler than pyrimidines
Pyrimidines utilize amino acids during synthesis
Purines are synthesized on the ring of ribose
IMP is formed in both pathways
Pyrimidine synthesis is performed before purine
Correct Answer
Purines are synthesized on the ring of ribose
Page 2 of 25
, Question 6
The intermediates in fatty acid synthesis are linked through a _______ linkage to ACP
Thgioester
Amide
Ester
Acetal
Ether
Correct Answer
Thioester
Question 7
The double bonds in naturally occurring fatty acids are usually ______ isomers
Correct Answer
Cis
Question 8
The one with the photo
FeS1, cyta, HemeB4, FADH2, cyt1A1, FeS2, UQ, cytb, O2
FeS1, cyta, HemeB4, FADH2, cyt1A1, O2,, FeS2, UQ, cytb
FeS1, cytb, HemeB4, FADH2, cyt1A1, FeS2, UQ, cyta, O2
FeS1, cyta, FADH2, cyt1A1, FeS2, UQ, cytb, O2, HemeB4
Correct Answer
FeS1, cyta, HemeB4, FADH2, cyt1A1, FeS2, UQ, cytb, O2
Question 9
Fatty acid synthesis begins with the carboxylation of acetyl CoA to form _________
Correct Answer
Malonyl-CoA
Page 3 of 25
