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NEETZoologyBreathing and Exchange of Gases

Read the following statements and choose the follwoing option: 1. Emphysema is a chronic disorder in which alveolar walls are damaged 2. Asthma is caused due to inflammation of larynx 3. Cystic fibrosis is caused by long exposure to heat 4. Cells utilise carbon monoxide for producing energy

Options

  1. AOnly 2 is correct
  2. BOnly 3 is correct
  3. CBoth 1 and 3 is correct
  4. DOnly 1 is correct

Correct answer

D. Only 1 is correct

Step-by-step solution

Emphysema is a chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased. One of the major causes of this is cigarette smoking.

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