Carbon monoxide binds to heme: A)with a higher affinity than oxygen. B)resulting in the oxidation of the Fe(II)to Fe(III) C)in a manner that displaces carbon dioxide,causing CO₂ poisoning. D)from the side opposite oxygen,resulting in a brown colored heme. E)with a lower affinity than oxygen.

Question

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Carbon monoxide binds to heme with a higher affinity than oxygen, which is the reason for the toxicity of carbon monoxide gas.

Carbon Monoxide Binds to Heme