Question

Substances which cause allergy are called ……..

Hint:

Allergic reactions involve the release of chemicals like histamine and serotonin from mast cells in the body.

Answer 1

Step 1: Allergy is an exaggerated response of the immune system to certain antigens present in the environment.
Step 2: The specific substances that trigger this immune response are called allergens (e.g., pollen, dust mites, animal dander).
Step 3: The immune system produces IgE type antibodies in response to these allergens.