Exposure to carbon monoxide (from coal gas) i | vedclass

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Question

(C) Carbon monoxide $(CO)$ binds to haemoglobin to form a stable compound called carboxyhaemoglobin $(COHb)$.$CO$ has an affinity for haemoglobin that

Vedclass · Accepted Answer

$COHb$ greatly modifies the structure of haemoglobin,thus making it lose its affinity for oxygen

Vedclass · Answer

(C) Carbon monoxide $(CO)$ binds to haemoglobin to form a stable compound called carboxyhaemoglobin $(COHb)$.$CO$ has an affinity for haemoglobin that is approximately $200-250$ times greater than that of oxygen.Because of this high affinity,$CO$ binds to haemoglobin more readily than oxygen,effectively blocking oxygen binding sites.This prevents the formation of oxyhaemoglobin,thereby reducing the oxygen-carrying capacity of the blood and leading to tissue hypoxia and death.

Exposure to carbon monoxide (from coal gas) is extremely dangerous and can kill a patient because

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