Question

Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorders like wheezing due to

• A. reduction in the secretion of surfactant; pneumocytes
• B. benign growth on mucous lining of nasal cavity
• C. inflammation of bronchi and bronchioles
• D. proliferation of fibrous tissues and damage of the alveolar walls

Answer 1

The correct option is C inflammation of bronchi and bronchioles

Particulate matter less than 2.5 micron in size (PM 2.5) is the most harmful kind of air pollutant. These fine particles, when inhaled deep into the lungs, can cause breathing and respiratory problems like wheezing due to inflammation of bronchi and bronchioles of the lungs.