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MCQs

Total Questions : 68 | Page 7 of 7 pages
Question 61. . If the F and Y angles of each peptide unit in a protein are known, which of the following may also be determined?
  1.    Complete secondary structure
  2.    Complete tertiary structure
  3.    Complete quaternary structure
  4.    Thermodynamic stability
 Discuss Question
Answer: Option A. -> Complete secondary structure
Question 62. . The different orders of protein structure are determined by all of the following bond types except
  1.    peptide bonds
  2.    phospho-diester bonds
  3.    disulfide bridges
  4.    hydrogen bonds
 Discuss Question
Answer: Option B. -> phospho-diester bonds
Question 63. . The heme is held in place by a bond between
  1.    the Fe2+ and cysteine
  2.    the Fe3+ and histidine
  3.    the Fe3+ and cysteine
  4.    the Fe2+ and histidine
 Discuss Question
Answer: Option D. -> the Fe2+ and histidine
Question 64. . The oxygen in hemoglobin and myoglobin is bound to
  1.    the iron atom in the heme group
  2.    the nitrogen atoms on the heme
  3.    histidine residues in the protein
  4.    lysine residues in the protein
 Discuss Question
Answer: Option A. -> the iron atom in the heme group
Question 65. . Which of the three subunits of the G proteins binds GDP and GTP?
  1.    Alpha
  2.    Beta
  3.    Gamma
  4.    Delta
 Discuss Question
Answer: Option A. -> Alpha
Question 66. . The different orders of protein structure are determined by all of the following bond types except
  1.    peptide bonds
  2.    phospho-diester bonds
  3.    disulfide bridges
  4.    hydrogen bonds
 Discuss Question
Answer: Option B. -> phospho-diester bonds
Question 67. . If the F and Y angles of each peptide unit in a protein are known, which of the following may also be determined?
  1.    Complete secondary structure
  2.    Complete tertiary structure
  3.    Complete quaternary structure
  4.    Thermodynamic stability
 Discuss Question
Answer: Option A. -> Complete secondary structure
Question 68. . The heme is held in place by a bond between
  1.    the Fe2+ and cysteine
  2.    the Fe3+ and histidine
  3.    the Fe3+ and cysteine
  4.    the Fe2+ and histidine
 Discuss Question
Answer: Option D. -> the Fe2+ and histidine

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