Q20 of 70 Page 57

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?

This unusual hypersensitive reaction is allergy, caused due to exposure towards allergens. Mast cells are responsible for such reactions. When an allergen binds to the IgE receptors on the mast cell a response is seen.

Precautions:


1. Avoid exposure to such allergens.


2. Take medicines as prescribed.


More from this chapter

All 70 →
18

What is the basic principle of vaccination? How do vaccines prevent microbial infections? Name the organism from which hepatitis B Vaccine is produced.

 19

What is cancer? How is a cancer cell different from the normal cell? How do normal cells attain cancerous nature?

 21

For an organ transplant, it is an advantage to have an identical twin. Why?

 22

What are lifestyle diseases? How are they caused? Name any two such diseases.