Assertion : Dust particles when come in contact with respiratory tract lead to sneezing, running nose, redness of eyes etc.

Reason : Allergic disorders are caused due to release of histamine.

Both A and R are true and R is the correct explanation of A

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both A and R are true but R is not correct explanation of A

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A is true but R is false

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A and R are false

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Both A and R are true and R is the correct explanation of A
Dust particles may cause allergic reaction leading to sneezing, redness of eyes and irritation. The mechanism involves immunoglobulin E antibodies (IgE) binding to an allergen and then to a receptor on mast cells or basophils where it triggers the release of inflammatory chemicals such as histamine.

Suggest Corrections