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Biology/Life Science MCQ 006 Biochemistry: Amino acids Part 2 for UGC CSIR JRF/NET, ICMR JRF, DBT JRF, GATE, ICAR NET examination by Easybiologyclass

Biochemistry Amino Acids MCQ part 2
UGC CSIR JRF/NET, ICMR JRF, DBT JRF, GATE, ICAR NET
Life Sciences Model Questions (MCQ) 005
Model Question Paper
Biochemistry: Amino acids Part 2 (MCQ)
Multiple choice questions (MCQ) in Life Sciences/Biology for preparing/practicing competitive examinations in Biological Sciences / Life Sciences such as UGC CSIR JRF NET Life Science Examination, ICMR JRF Entrance Examination, DBT JRF Examination, ICAR NET Examination GATE Biotechnology Examination, GATE Life Science Examination, Medical entrance examination and many more. Questions are in multiple Choice Question (MCQ) format with four options and a single correct answer. Answers of each questions and detailed explanations are provided.
For more details please visit www.easybiologyclass.com
UGC CSIR JRF/NET, ICMR JRF, DBT JRF, GATE, ICAR NET
Life Sciences MCQ Model Questions
Multiple Choice Questions
Biochemistry: Amino Acids Part 2 (MCQ 006)

1. Which amino acid, among the 20 standard protein coding amino acids, is most abundantly occurs in proteins?

a. Glycine
b. Methionine
c. Serine
d. Leucine

2. Which of the following amino acid is having more polarity?

a. Lysine
b. Arginine
c. Histidine
d. Aspartate

3. Majority of enzyme’s active site usually contain one or more _____ residue.

a. Glycine
b. Tryptophan
c. Histidine
d. Arginine

4. The following is the amino acid sequence of an alien polypeptide: ‘AGQHIKXSKPWYVGLBUFF’. The ‘X’ in the given sequence represents ___________.
a. Asparagine
b. Isoleucine
c. An ambiguous amino acid
d. An unknown amino acid
5. Amino acid acting as a defensive molecule in plants:

a. Canavanine
b. Con-canavalin
c. Proline
d. All of these
6. Which amino acid act as the precursor for the synthesis of the neurotransmitter serotonin?

a. Tyrosine
b. Tryptophan
c. Glycine
d. Arginine

7. _____ is an exclusively ketogenic amino acid in human.

a. Valine
b. Methionine
c. Leucine
d. Proline

8. pI of ___________ is near to physiological pH.

a. Lysine
b. Histidine
c. Arginine
d. Glutamic acid

9. Which amino acid act as the precursor of dopamine?

a. Glycine
b. Aspartate
c. Valine
d. Tyrosine

10. What is the molecular weight of Tryptophan?

a. 202 g.mol-1
b. 204 g.mol-1
c. 206 g.mol-1
d. 208 g.mol-1

11. Amino acid which act as the precursor of IAA (indole 2-acetic acid) biosynthesis in plants is_____.

a. Tyrosine
b. Phenylalanine
c. Tryptophan
d. Methionine

12. Amino acid involved in urea cycle____.

a. Ornithine
b. Citrulline
c. Arginine
d. Both (a) and (b)
e. All of these
13. Which of the following amino acid have the buffering capacity at physiological pH?

a. Lysine
b. Arginine
c. Histidine
d. Aspartic acid

14. Amino acid which act as the precursor of epinephrine synthesis is_____.

a. Glycine
b. Aspartate
c. Tyrosine
d. Valine

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Biology/Life Science MCQ 006 Biochemistry: Amino acids Part 2 for UGC CSIR JRF/NET, ICMR JRF, DBT JRF, GATE, ICAR NET examination by Easybiologyclass

  1. 1. MCQ 006 Save paper… Save trees… For more Questions and Resources for your CSIR/ICMR/DBT/ICAR/UGC/JRF NET Life Science Examination please visit: www.easybiologyclass.com 1 UGC CSIR JRF/NET, ICMR JRF, DBT JRF, GATE, ICAR NET Life Sciences MCQ Model Questions Multiple Choice Questions Biochemistry: Amino Acids Part 2 (MCQ 006) 1. Which amino acid, among the 20 standard protein coding amino acids, is most abundantly occurs in proteins? a. Glycine b. Methionine c. Serine d. Leucine 2. Which of the following amino acid is having more polarity? a. Lysine b. Arginine c. Histidine d. Aspartate 3. Majority of enzyme’s active site usually contain one or more _____ residue. a. Glycine b. Tryptophan c. Histidine d. Arginine 4. The following is the amino acid sequence of an alien polypeptide: ‘AGQHIKXSKPWYVGLBUFF’. The ‘X’ in the given sequence represents ___________. a. Asparagine b. Isoleucine c. An ambiguous amino acid d. An unknown amino acid 5. Amino acid acting as a defensive molecule in plants: a. Canavanine b. Con‐canavalin c. Proline d. All of these 6. Which amino acid act as the precursor for the synthesis of the neurotransmitter serotonin? a. Tyrosine b. Tryptophan c. Glycine d. Arginine 7. _____ is an exclusively ketogenic amino acid in human. a. Valine b. Methionine c. Leucine d. Proline 8. pI of ___________ is near to physiological pH. a. Lysine b. Histidine c. Arginine d. Glutamic acid w w w .easybiologyclass.com
  2. 2. MCQ 006 Save paper… Save trees…   For more Questions and Resources for your CSIR/ICMR/DBT/ICAR/UGC/JRF NET Life Science Examination please visit: www.easybiologyclass.com 2   9. Which amino acid act as the precursor of dopamine? a. Glycine b. Aspartate c. Valine d. Tyrosine 10. What is the molecular weight of Tryptophan? a. 202 g.mol‐1 b. 204 g.mol‐1 c. 206 g.mol‐1 d. 208 g.mol‐1 11. Amino acid which act as the precursor of IAA (indole 2‐acetic acid) biosynthesis in plants is_____. a. Tyrosine b. Phenylalanine c. Tryptophan d. Methionine 12. Amino acid involved in urea cycle____. a. Ornithine b. Citrulline c. Arginine d. Both (a) and (b) e. All of these 13. Which of the following amino acid have the buffering capacity at physiological pH? a. Lysine b. Arginine c. Histidine d. Aspartic acid 14. Amino acid which act as the precursor of epinephrine synthesis is_____. a. Glycine b. Aspartate c. Tyrosine d. Valine 15. Which amino acid act as the precursor of nitric oxide biosynthesis in animals? a. Phenyl alanine b. Arginine c. Aspartate d. Ornithine 16. Which of the following is an essential amino acid? a. Aspartic acid b. Alanine c. Leucine d. Asparagine e. All of these 17. Which of the following is a non‐essential amino acid? a. Alanine b. Histidine c. Lysine d. Methionine w w w .easybiologyclass.com
  3. 3. MCQ 006 Save paper… Save trees…   For more Questions and Resources for your CSIR/ICMR/DBT/ICAR/UGC/JRF NET Life Science Examination please visit: www.easybiologyclass.com 3   e. All of these 18. Which of the following amino acid is coded by a single codon? a. Lysine b. Arginine c. Tryptophan d. Phenylalanine 19. First discovered amino acid is ____. a. Asparagine b. Aspartate c. Glutamate d. Glutamine 20. Among the 20 standard protein coding amino acids, which was the last discovered amino acid? a. Leucine b. Isoleucine c. Threonine d. Serine ***************************     For correct answers and explanations please visit…. (http://www.easybiologyclass.com/biology‐mcq‐multiple‐choice‐questions/ Visit www.easybiologyclass.com for more….   w w w .easybiologyclass.com

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