Ncert Exercises & Solutions

Q. 59 A person shows strong unusual hypersensitive reactions when exposed to certain substances present in the air. Identify the condition. Name the cells responsible for such reactions. What precaution should be taken to avoid such reactions.

a person is hypersensitive to certain substance present in the air, he may be allergic to it. Mast cells release certain chemicals, e.g., histarnine and serotonin, in response to this substance, that result in allergic reaction.

Precaution taken to prevent such reaction is to avoid the allergens responsible for particular allergy.

NEET Information

courses

Company

Botany Questions

Chemistry Questions

Physics Questions

Zoology Questions