Carbon monoxide reduces the red blood cell's ability to transport oxygen by
A) thinning the blood.
B) displacing fluid in cells.
C) destroying oxygen molecules.
D) attaching itself to hemoglobin.

Question

Quizplus · Accepted Answer

Carbon monoxide binds to hemoglobin with a much higher affinity than oxygen, forming carboxyhemoglobin, which reduces the blood's ability to carry oxygen.

Carbon Monoxide Reduces the Red Blood Cell's Ability to Transport