The reason that carbon monoxide is so toxic is because it:
A) Is a protoplasmic poison.
B) Combines with cytochrome oxidase.
C) Has 200-250 times the affinity of oxygen for hemoglobin binding sites.
D) Sensitizes the myocardium.

Question

Quizplus · Accepted Answer

Carbon monoxide is highly toxic because it binds to hemoglobin with a much greater affinity than oxygen, effectively displacing oxygen and leading to hypoxia at the tissue level. This prevents the blood from carrying oxygen to cells, tissues, and organs.

The Reason That Carbon Monoxide Is So Toxic Is Because