Which of the following statements is correct for hemoglobin and oxygen

Which of the following statements is correct for

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29.Which of the following statements is correct for hemoglobin and oxygen transport? A)The oxygen binds to the proximal histidine residue of the globin chain.B)Bonding of carbon dioxide to hemoglobin molecules increases the binding of oxygen.C)Hemoglobin binds more oxygen as the pH is lowered.D)Hemoglobin binds more oxygen at higher [BPG] concentrations.E)The binding of each O2molecule to hemoglobin increases its affinityfor the next O2.Ans: E Section: 9.3 30.Which of the following describes the Bohr effect? 32.Carbon dioxide forms carbamate groups in proteins by reaction with: 4
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Chapter 9 Hemoglobin: An Allosteric Protein 33.Sickle-cell anemia is caused by: 34.Which of the following is correct concerning the oxygenation plot of proteins X and Y shown inthe graph below? A)Protein Y exhibits tighter oxygen binding than protein X.B)Protein Y corresponds to fetal hemoglobin, and protein X corresponds to normal adult hemoglobin.C)Protein X corresponds to fetal hemoglobin, and protein Y corresponds to normal adult hemoglobin.D)Protein X corresponds to myoglobin, and protein Y corresponds to hemoglobin.E)None of the above.Ans: C Section: 9.4 35.Which of the following is NOTcorrect concerning the oxygenation plot of proteins X and Y shown in the graph below? 5
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Chapter 9 Hemoglobin: An Allosteric Protein 36.Consider the oxygen-binding profile at three different pH values of 7.6, 7.4, and 7.2. Which statement is most correct?
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  • Fall '17
  • Hemoglobin

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