11. Answer in a sentence II

 

a. Tobacco smoke contains benzopyrene and polycyclic hydrocarbons, which are carcinogenic, causing lung cancerEsophageal cancer.

 

b. The smoke of tobacco causes the inflammation of the throat and bronchi, leading to the conditions such as bronchitis and extrapulmonary tuberculosispulmonary tuberculosis.

 

c. Inflammation of the lung alveoli reduces the surface area for gas exchange, causing emphysemaSarcomasLeukaemia.

 

d. The carbon monoxide present in the tobacco smoke binds to the haemoglobin of RBC. It leads to a decrease in the oxygen-carrying capacity, which causes hypoxiaduodenal ulcergastric ulcer in the body tissues.