NEET 2019 Biology question

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

(1)benign growth on mucous lining of nasal cavity
(2)inflammation of bronchi and bronchiolesCorrect
(3)proliferation of fibrous tissues and damage of the alveolar walls
(4)reduction in the secretion of surfactants by pneumocytes.

Answer: (2)

Solution

Asthma is a difficulty in breathing causing wheezing due to inflammation of the bronchi and bronchioles, commonly triggered by allergens and pollutants (NCERT, Disorders of the Respiratory System). Hence option

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-092494