Which of the following does hemoglobin bond most strongly with?

Which of the following does hemoglobin bond most strongly with?
A . oxygen
B . carbon dioxide
C . carbon monoxide
D . hydrogen

View Answer

Answer: C

Explanation:

Hemoglobin bonds most strongly with carbon monoxide as a result of the interaction of the orbitals of the hemoglobin and the carbon monoxide molecule. The carbon forms an ionic bond with the hemoglobin’s iron, and because of the joint configuration, the iron is able to donate additional electrons to the carbon monoxide.