Which of the Following Statements Is Correct for Hemoglobin and Oxygen

question 1

Multiple Choice

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 O₂ molecule to hemoglobin increases its affinity for the next O₂ molecule.

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