Question

Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons, which cause

• A. reduction in oxygen transport
• B. increase in blood pressure
• C. cancer
• D. retardation of growth of foetus

Answer 1

The correct option is C

cancer

Polycyclic aromatic hydrocarbons can result from the incomplete combustion of organic matter. These are carcinogenic and thus, cause cancer.
The carbon monoxide that is also produced by incomplete combustion of tobacco binds to haemoglobin and thus reduces oxygen transport. Nicotine stimulates the release of adrenaline and hence increases blood pressure. Nicotine is also responsible for the abnormal growth of the foetus in a pregnant woman.