A Significant Contribution to the Change in Hemoglobin Affinity for Oxygen

question 13

Multiple Choice

A significant contribution to the change in hemoglobin affinity for oxygen from pH 7.2 to pH 7.6 is due to a change in the protonation state of which amino acid side chain?

• A) Cys
• B) His
• C) Ser
• D) Asp
• E) Lys

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