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MCQs

Total Questions : 33 | Page 3 of 4 pages
Question 21. What is the product of the catabolic breakdown of Alanine?
  1.    Pyruvate
  2.    Fumarate
  3.    Oxaloacetate
  4.    Malate
 Discuss Question
Answer: Option A. -> Pyruvate
Question 22. How many different amino acids are there?
  1.    20
  2.    100
  3.    3
  4.    An infinite number
 Discuss Question
Answer: Option A. -> 20
Question 23. Which of the following amino acid contain an imidazolium moiety?
  1.    Alanine
  2.    Histidine
  3.    Valine
  4.    Cysteine
 Discuss Question
Answer: Option B. -> Histidine
Question 24. The sequence of letters 'WYQN' will represent
  1.    Tryptophan, glutamine, tryptophan, asparagine
  2.    Glutamine, tyrosine, tryptophan, aspartic acid
  3.    Tryptophan, tyrosine, glutamic acid, asparagine
  4.    Tryptophan, tyrosine, glutamine, asparagine
 Discuss Question
Answer: Option D. -> Tryptophan, tyrosine, glutamine, asparagine
Question 25. Amino acids required in the human diet and not synthesized by the body are called
  1.    essential
  2.    trace
  3.    accessory
  4.    specialized
 Discuss Question
Answer: Option A. -> essential
Question 26. Which of the following is a nonprotein amino acid?
  1.    None of these
  2.    Cystine
  3.    Dopamine
  4.    Hydroxylysine
 Discuss Question
Answer: Option C. -> Dopamine
Question 27. Serine and threonine are polar amino acids due to
  1.    reactive keto group in the side chain
  2.    reactive hydroxyl group in the side chain
  3.    reactive aldehyde group in the side chain
  4.    reactive alcoholic group in the side chain
 Discuss Question
Answer: Option B. -> reactive hydroxyl group in the side chain
Question 28. Stereo chemical configuration of all a-amino acids derived from proteins is
  1.    L
  2.    None of these
  3.    L and D
  4.    D
 Discuss Question
Answer: Option A. -> L
Question 29. The sulphur containing side chain of cysteine is
  1.    ampiphillic, highly reactive and capable of reacting with another cysteine
  2.    None of these
  3.    hydrophobic, highly reactive and capable of reacting with another cysteine
  4.    hydrophillc, highly reactive and capable of reacting with another cysteine
 Discuss Question
Answer: Option C. -> hydrophobic, highly reactive and capable of reacting with another cysteine
Question 30. Which of the following is not the hydrophobic and aromatic amino acid?
  1.    Tryptophan
  2.    Tyrosine
  3.    Phenylalanine
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these

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