CHE 4342 FINAL MULTIPLE CHOICE EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% CORRECT VERIFIED BEST
GRADED A+ FOR PASS
1. Which of the following is a FALSE statement regarding glycogen breakdown?
a. Glycogen breakdown cleaves 𝛼(1→6) linkages to form 𝛼 (1→4) linkages
b. Glycogen breakdown involves the formation of a Schiff base
c. Glycogen breakdown uses UTP in place of ATP
d. Phosphoglucomutase converts G1P to G6P - CORRECT ANSWERS c. Glycogen breakdown uses
UTP in place of ATP
2. 𝛃-oxidation of saturated fatty acids differs from that of unsaturated fatty acids in that...
a. Unsaturated fatty acid oxidation produces FADH2 while saturated fatty acid oxidation produces only
NADH
b. Unsaturated fatty acid oxidation utilizes enoyl-CoA isomerase to convert a cis-bond to a trans-bond,
while this isomerase is never used in saturated fatty acid synthesis
c. SyccinylCoA is used by only saturated fatty acid oxidation and is not seen in unsaturated fatty acid
oxidation
d. Saturated fatty acids are more easily oxidized than unsaturated fatty acids as unsaturated fatty acids
must be isomerized to prevent reverse reactions - CORRECT ANSWERS d. Saturated fatty acids
are more easily oxidized than unsaturated fatty acids as unsaturated fatty acids must be isomerized to
prevent reverse reactions
3. Which of the following are spontaneous forms of DNA damage?
a. Base tautomerization
b. UV radiation
c. Base deamination
d. None of the above
e. A and C - CORRECT ANSWERS e. A and C
4. Which of the following forms of DNA damage result in DNA base adducts?
a. Ultra-violet Light
,CHE 4342 FINAL MULTIPLE CHOICE EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% CORRECT VERIFIED BEST
GRADED A+ FOR PASS
b. Ionising Radiation
c. Alkaylating agents
d. None of the above - CORRECT ANSWERS Ultra-violet Light
5. Ubiquitination serves an important role in protein degradation. Which of the following statements of
ubiquitination is true?
a. Ubiquitin binds to a serine residue on the protein designated to be degraded
b. Ubiquitin is large, making it favorable for destruction in the cell
c. Only polyubiquitin is possible in mammalian cells
d. Ubiquination is activated by adenylate - CORRECT ANSWERS d. Ubiquination is activated by
adenylate
6. Which of the following statements of RNAi is FALSE?
a. miRNA is triggered by dsRNA, while siRNA is triggered by ssRNA
b. miRNA is preceded by pri-miRNA that is then cleaved by Drosha, while siRNA is preceded by dsRNA
that is cleaved by Dicer
c. siRNA is exogenous while miRNA is endogenous
d. All of the above are false statements - CORRECT ANSWERS a. miRNA is triggered by dsRNA,
while siRNA is triggered by ssRNA
7. Which of the following are potential antibiotic targets in bacterial cells?
a. The cell wall
b. The A site of the ribosome
c. The P site of the ribosome
d. The exit tunnel fo the ribosome
e. All of the above - CORRECT ANSWERS e. All of the above
,CHE 4342 FINAL MULTIPLE CHOICE EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% CORRECT VERIFIED BEST
GRADED A+ FOR PASS
8. Which of the following statements most accurately describes wobble theory?
a. Any deviation in any position results in "wobbly", weaker base pairing that can be broken more easily
b. The first two amino acid positions typically exhibit wobble, while the third position must bind in
Watson/Crick base pairing
c. The third position typically exhibits wobble, while the first two positions adhere to W/C base pairing
d. Any deviation in the third position prevents the tRNA from reading the codons, resulting in "wobble"
in translation as the ribosome is forced to slow protein synthesis - CORRECT ANSWERS c. The
third position typically exhibits wobble, while the first two positions adhere to W/C base pairing
9. Which of the following statements about translation is/are true?
i. ATP hydrolysis drives the addition of charged tRNA molecules to the A-site.
ii. Both the A and P site interacts with mRNA.
iii. The growing polypeptide chain is released from the E site of the ribosome.
a. I, II, III
b. I, III
c. II, III
d. I only
e. II only - CORRECT ANSWERS e. II only
Which of the following is an intermediate in the conversion of ribose-5-phosphate to GTP following
protein synthesis?
a. XMP
b. GTP
c. IMP
d. All of the above are true
e. None of the above are true - CORRECT ANSWERS d. All of the above are true
, CHE 4342 FINAL MULTIPLE CHOICE EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% CORRECT VERIFIED BEST
GRADED A+ FOR PASS
1. Cloning vectors must have
a. Origin of replication
b. Selectable marker
c. Multiple cloning sites
d. All of the above
e. None of the above - CORRECT ANSWERS d. All of the above
The first cycle of PCR produces __ ___ DNA molecules.
a. 8 double stranded
b. 2 single stranded
c. 2 double stranded
d. 4 single stranded
e. 8 single stranded - CORRECT ANSWERS 2 double stranded
Simultaneous transport of two or more moecules in the same direction can occur with.
a. Symport translocation
b. Uniport translocation
c. Antiport translocation
d. Ligand-gated ion channels
e. None of the above - CORRECT ANSWERS a. Symport translocation
In the classic Fraz Knoop experiment with Beta-oxidation fatty acids are broken down by?
a. Acetyl-CoA
b. TCA cycle
c. 2-carbon mechanism
ANSWERS LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% CORRECT VERIFIED BEST
GRADED A+ FOR PASS
1. Which of the following is a FALSE statement regarding glycogen breakdown?
a. Glycogen breakdown cleaves 𝛼(1→6) linkages to form 𝛼 (1→4) linkages
b. Glycogen breakdown involves the formation of a Schiff base
c. Glycogen breakdown uses UTP in place of ATP
d. Phosphoglucomutase converts G1P to G6P - CORRECT ANSWERS c. Glycogen breakdown uses
UTP in place of ATP
2. 𝛃-oxidation of saturated fatty acids differs from that of unsaturated fatty acids in that...
a. Unsaturated fatty acid oxidation produces FADH2 while saturated fatty acid oxidation produces only
NADH
b. Unsaturated fatty acid oxidation utilizes enoyl-CoA isomerase to convert a cis-bond to a trans-bond,
while this isomerase is never used in saturated fatty acid synthesis
c. SyccinylCoA is used by only saturated fatty acid oxidation and is not seen in unsaturated fatty acid
oxidation
d. Saturated fatty acids are more easily oxidized than unsaturated fatty acids as unsaturated fatty acids
must be isomerized to prevent reverse reactions - CORRECT ANSWERS d. Saturated fatty acids
are more easily oxidized than unsaturated fatty acids as unsaturated fatty acids must be isomerized to
prevent reverse reactions
3. Which of the following are spontaneous forms of DNA damage?
a. Base tautomerization
b. UV radiation
c. Base deamination
d. None of the above
e. A and C - CORRECT ANSWERS e. A and C
4. Which of the following forms of DNA damage result in DNA base adducts?
a. Ultra-violet Light
,CHE 4342 FINAL MULTIPLE CHOICE EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% CORRECT VERIFIED BEST
GRADED A+ FOR PASS
b. Ionising Radiation
c. Alkaylating agents
d. None of the above - CORRECT ANSWERS Ultra-violet Light
5. Ubiquitination serves an important role in protein degradation. Which of the following statements of
ubiquitination is true?
a. Ubiquitin binds to a serine residue on the protein designated to be degraded
b. Ubiquitin is large, making it favorable for destruction in the cell
c. Only polyubiquitin is possible in mammalian cells
d. Ubiquination is activated by adenylate - CORRECT ANSWERS d. Ubiquination is activated by
adenylate
6. Which of the following statements of RNAi is FALSE?
a. miRNA is triggered by dsRNA, while siRNA is triggered by ssRNA
b. miRNA is preceded by pri-miRNA that is then cleaved by Drosha, while siRNA is preceded by dsRNA
that is cleaved by Dicer
c. siRNA is exogenous while miRNA is endogenous
d. All of the above are false statements - CORRECT ANSWERS a. miRNA is triggered by dsRNA,
while siRNA is triggered by ssRNA
7. Which of the following are potential antibiotic targets in bacterial cells?
a. The cell wall
b. The A site of the ribosome
c. The P site of the ribosome
d. The exit tunnel fo the ribosome
e. All of the above - CORRECT ANSWERS e. All of the above
,CHE 4342 FINAL MULTIPLE CHOICE EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% CORRECT VERIFIED BEST
GRADED A+ FOR PASS
8. Which of the following statements most accurately describes wobble theory?
a. Any deviation in any position results in "wobbly", weaker base pairing that can be broken more easily
b. The first two amino acid positions typically exhibit wobble, while the third position must bind in
Watson/Crick base pairing
c. The third position typically exhibits wobble, while the first two positions adhere to W/C base pairing
d. Any deviation in the third position prevents the tRNA from reading the codons, resulting in "wobble"
in translation as the ribosome is forced to slow protein synthesis - CORRECT ANSWERS c. The
third position typically exhibits wobble, while the first two positions adhere to W/C base pairing
9. Which of the following statements about translation is/are true?
i. ATP hydrolysis drives the addition of charged tRNA molecules to the A-site.
ii. Both the A and P site interacts with mRNA.
iii. The growing polypeptide chain is released from the E site of the ribosome.
a. I, II, III
b. I, III
c. II, III
d. I only
e. II only - CORRECT ANSWERS e. II only
Which of the following is an intermediate in the conversion of ribose-5-phosphate to GTP following
protein synthesis?
a. XMP
b. GTP
c. IMP
d. All of the above are true
e. None of the above are true - CORRECT ANSWERS d. All of the above are true
, CHE 4342 FINAL MULTIPLE CHOICE EXAM QUESTIONS AND
ANSWERS LATEST DOWNLOADED 2025/2026 A COMPLETE
SOLUTION ALL ANSWERS 100% CORRECT VERIFIED BEST
GRADED A+ FOR PASS
1. Cloning vectors must have
a. Origin of replication
b. Selectable marker
c. Multiple cloning sites
d. All of the above
e. None of the above - CORRECT ANSWERS d. All of the above
The first cycle of PCR produces __ ___ DNA molecules.
a. 8 double stranded
b. 2 single stranded
c. 2 double stranded
d. 4 single stranded
e. 8 single stranded - CORRECT ANSWERS 2 double stranded
Simultaneous transport of two or more moecules in the same direction can occur with.
a. Symport translocation
b. Uniport translocation
c. Antiport translocation
d. Ligand-gated ion channels
e. None of the above - CORRECT ANSWERS a. Symport translocation
In the classic Fraz Knoop experiment with Beta-oxidation fatty acids are broken down by?
a. Acetyl-CoA
b. TCA cycle
c. 2-carbon mechanism
