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STD 12 - 7. human health and disease — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 7. human health and disease1 Mark
MCQ
Increased asthmatic attacks in certain seasons are related to
  • A
    eating fruits preserved in tin containers
  • ✓
    inhalation of seasonal pollen
  • C
    low temperature
  • D
    hot and humid environment.
✓

Answer

Correct option: B.
inhalation of seasonal pollen
b
(b) : Increased asthmatic attacks in certain seasons are related to inhalation of seasonal pollen. Pollens are microscopic grains produced by plants in order to reproduce. Pollen allergy is a hypersensitive reaction to pollen. Pollen induced reactions include extrinsic asthma, rhinitis and bronchitis.

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