42. Man dies in the atmosphere of CO, because it A.Dries up the blood B.Combines with O2 present in the body C.Reduces the organic matter of tissues D.Combines with the haemoglobin of blood, thereby making the later incapable of absorbing O2
Answer: Option D Solution: The preferential binding of carbon monoxide to iron severely limits the oxygen to bind to hemoglobin. As a result, less oxygen is carried through our system and we die.