All of the Following Statements Regarding the Interaction of Hemoglobin

question 28

Multiple Choice

All of the following statements regarding the interaction of hemoglobin with oxygen are true EXCEPT

• A) in Hb A, each heme prosthetic group is capable of reversibly binding one oxygen molecule.
• B) the oxygen molecule binds to the heme prosthetic group on the surface opposite to that occupied by the F8 - His.
• C) the effect of oxygenation on a heme prosthetic group is such as to push the F8 - His farther from the plane of the heme ring.
• D) the reversible binding of an oxygen molecule to a heme prosthetic group requires that the iron of the heme be in the divalent state.
• E) oxygenated hemoglobin is a stronger acid than deoxygenated hemoglobin.

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