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Breathing and Exchange of Gases question

2016 · Q7
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Breathing and Exchange of Gases question

2016 · Q7

NEETBiologyBreathing and Exchange of GasesMCQ+4 / −1
Asthma may be attributed to
  1. A
    inflammation of the trachea
  2. B
    accumulation of fluid in the lungs
  3. C
    bacterial infection of the lungs
  4. D
    allergic reaction of the mast cells in the lungs.
View written solutionFree

Correct answer: D

Asthma is an allergic condition in which the tissue surrounding the bronchioles of the lungs swell up and compress the bronchioles thus causing difficulty in breathing. This allergy mainly involves IgE antibodies and chemicals like histamine and serotonin from the mast cells.

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