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MCQs

Total Questions : 173 | Page 3 of 18 pages
Question 21. Pyruvate is the precursor for
  1.    Alanine
  2.    Glutamate
  3.    Serine
  4.    Proline
 Discuss Question
Answer: Option A. -> Alanine
Answer: (a).Alanine
Question 22. Nitrate is reduced and ultimately produces N₂ through a series of intermediate gaseous nitrogen oxide products is called as
  1.    Nitrogen fixation
  2.    Nitrification
  3.    Denitrification
  4.    Nitrogen assimilation
 Discuss Question
Answer: Option C. -> Denitrification
Answer: (c).Denitrification
Question 23. The cyclized derivative of glutamate is
  1.    Proline
  2.    Arginine
  3.    Glutamine
  4.    Serine
 Discuss Question
Answer: Option A. -> Proline
Answer: (a).Proline
Question 24. 3-phosphoglycerate is not the metabolic precursor for
  1.    Serine
  2.    Glycine
  3.    Cysteine
  4.    Arginine
 Discuss Question
Answer: Option D. -> Arginine
Answer: (d).Arginine
Question 25. Precursor of glycine is
  1.    Proline
  2.    Glutamine
  3.    Serine
  4.    Glutamate
 Discuss Question
Answer: Option C. -> Serine
Answer: (c).Serine
Question 26. Which of the following is a non-essential amino acid?
  1.    Methionine
  2.    Threonine
  3.    Lysine
  4.    Cysteine
 Discuss Question
Answer: Option D. -> Cysteine
Answer: (d).Cysteine
Question 27. Which of the following gives rise to methionine, threonine and lysine?
  1.    Pyruvate
  2.    Glutamate
  3.    Aspartate
  4.    Serine
 Discuss Question
Answer: Option C. -> Aspartate
Answer: (c).Aspartate
Question 28. Which of the following is not an aromatic amino acid?
  1.    Phenylalanine
  2.    Tyrosine
  3.    Tryptophan
  4.    Leucine
 Discuss Question
Answer: Option D. -> Leucine
Answer: (d).Leucine
Question 29. Which of the following can be formed by hydroxylation of phenylalanine?
  1.    Serine
  2.    Tyrosine
  3.    Tryptophan
  4.    Leucine
 Discuss Question
Answer: Option B. -> Tyrosine
Answer: (b).Tyrosine
Question 30. Which of the following gives rise to valine and isoleucine?
  1.    Pyruvate
  2.    Glutamate
  3.    Aspartate
  4.    Serine
 Discuss Question
Answer: Option A. -> Pyruvate
Answer: (a).Pyruvate

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