Human Reproduction Question 393

Question: How carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body tissues [CBSE PMT 1998]

Options:

A) By chaning 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

Show Answer

Answer:

Correct Answer: C

Solution:

Carbon monoxide when inhaled combines with hemoglobin more rapidly than oxygen.

It blocks the oxygen transport by forming stable compound carboxyhaemoglobin.

Its prolonged inhalation may lead to death.