6
Question
Which of the following air pollutants reduces the oxygen-carrying capacity of blood?
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Solution
The correct option is B Carbon monoxide
Carbon monoxide can also bind to haemoglobin and does so 240 times more tightly than oxygen, forming a compound called carboxyhaemoglobin. This means that if carbon monoxide and oxygen are inhaled, carbon monoxide will preferentially bind to haemoglobin. This reduces the amount of haemoglobin available to bind with oxygen, so the body and tissues become starved of oxygen.
Carbon monoxide can also bind to haemoglobin and does so 240 times more tightly than oxygen, forming a compound called carboxyhaemoglobin. This means that if carbon monoxide and oxygen are inhaled, carbon monoxide will preferentially bind to haemoglobin. This reduces the amount of haemoglobin available to bind with oxygen, so the body and tissues become starved of oxygen.
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