Question

How carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body tissues

• A. By changing oxygen into carbon dioxide
• B. By destroying the haemoglobin
• C. By forming a stable compound with haemoglobin
• D. By obstructing the reaction of oxygen with haemoglobin

Answer 1

The correct option is C By forming a stable compound with haemoglobin

Carbon monoxide when inhaled combines with haemoglobin more rapidly than oxygen. It blocks the oxygen transport by forming stable compound carboxyhaemoglobin. Its prolonged inhalation may lead to death.