Biochem Amino Acids
Quiz for biochem. This topic is amino acids. 20 questions.
- 1.
Which of the following is a non polar aliphatic amino acid?
- A.
Serine
- B.
Arginine
- C.
Leucine
- D.
Tyrosine
- E.
Phenylalanine
Correct Answer
C. Leucine -
- 2.
Which of the following is a non polar aromatic amino acid?
- A.
Glycine
- B.
Tryptophan
- C.
Leucine
- D.
Threoine
- E.
Aspartate
Correct Answer
B. Tryptophan -
- 3.
Which of the following is a polar uncharged amino acid?
- A.
Glutamine
- B.
Arginine
- C.
Glutamate
- D.
Valine
- E.
Proline
Correct Answer
A. Glutamine -
- 4.
Which of the following is a polar negatively charged amino acid?
- A.
Glutamine
- B.
Leucine
- C.
Glutamate
- D.
Serine
- E.
Glycine
Correct Answer
C. Glutamate -
- 5.
Which of the following is a polar positively charged amino acid?
- A.
Glutamine
- B.
Glutamate
- C.
Arginine
- D.
Asparagine
- E.
Aspartate
Correct Answer
C. Arginine -
- 6.
What forms between two cysteines to produce cystine?
- A.
A hydrogen bond
- B.
A disulfide bond
- C.
An ionic bond
- D.
Val der waals interactions
- E.
None of the above
Correct Answer
B. A disulfide bond -
- 7.
Which of the following is a reducing agent that can break a disulfide bond?
- A.
Dithiothreitol (DTT)
- B.
Mercaptoethanol
- C.
Gamma-carboxyglutmate
- D.
A and B
- E.
B and C
Correct Answer
D. A and B -
- 8.
Which of the following makes up glutathione, the cellular free radical scavenger?
- A.
Glutamate
- B.
Cysteine
- C.
Glycine
- D.
All of the above
- E.
None of the above
Correct Answer
D. All of the above -
- 9.
What converts H2O2 into H2O and O2?
- A.
Beta-carboxylation
- B.
Beta-oxidation
- C.
Glutathione peroxidase
- D.
A and B
- E.
B and C
Correct Answer
C. Glutathione peroxidase -
- 10.
What is required to reduce an oxidized glutathione?
- A.
NADH
- B.
NADPH
- C.
Glutathione reductase
- D.
A and C
- E.
B and C
Correct Answer
E. B and C -
- 11.
What drug may cause latrogenic hemolytic anemia?
- A.
Primaquine
- B.
Warfarin
- C.
Lexapro
- D.
None of the above
Correct Answer
A. Primaquine -
- 12.
What is in certain clotting factors?
- A.
Dithiothreitol (DTT)
- B.
Mercaptoethanol
- C.
Gamma-carboxyglutamate
- D.
A and B
- E.
B and C
Correct Answer
C. Gamma-carboxyglutamate -
- 13.
What drug is a vitamin K antagonist and useful as an anticoagulant?
- A.
Primaquine
- B.
Warfarin
- C.
Lexapro
- D.
None of the above
Correct Answer
B. Warfarin -
- 14.
A phosphatase generally causes?
- A.
Phosphorylation
- B.
Dephosphorylation
- C.
Carboxylation
- D.
Hydrolyzation
Correct Answer
B. Dephosphorylation -
- 15.
What amino acid is sertonin derived from?
- A.
Glycine
- B.
Glutamate
- C.
Tyrosine
- D.
Histadine
- E.
Tryptophan
Correct Answer
E. Tryptophan -
- 16.
Which of the following are inhibitory synapses?
- A.
Glycine
- B.
GABA
- C.
Glutamate
- D.
A and B
- E.
B and C
Correct Answer
D. A and B -
- 17.
Which of the following are excitatory synapses?
- A.
Glycine
- B.
GABA
- C.
Glutamate
- D.
A and B
- E.
B and C
Correct Answer
C. Glutamate -
- 18.
Which of the following is derived from tyrosine?
- A.
Dopamine
- B.
Norepinephrine
- C.
Epinephrine
- D.
All of the above
Correct Answer
D. All of the above -
- 19.
What amino acid is histamine derived from?
- A.
Glycine
- B.
Glutamate
- C.
Tyrosine
- D.
Histadine
- E.
Tryptophan
Correct Answer
D. Histadine -
- 20.
What enzyme is needed to produce nitric oxide from arginine?
- A.
Nitric oxide synthase
- B.
Adenylyl cyclase
- C.
Cyclic nucleotide phosphodiesterase
- D.
None of the above
Correct Answer
A. Nitric oxide synthase -
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Mar 17, 2022Quiz Edited by
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Dec 26, 2010Quiz Created by
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