Question

The exaggerated response of the immune system to certain antigens present in the environment is called

• A. Allergy
• B. Disease
• C. Leukaemia
• D. All of these

Hint:

Allergies are often triggered by environmental factors like pollen, dust mites, and certain foods.

Answer 1

The Correct Option is A

Step 1: Define allergy.
An allergy is an exaggerated immune response to harmless substances (allergens), such as pollen, dust, or food.
Step 2: Differentiate between options.
- Allergy: Caused by hypersensitivity to specific antigens.
- Disease: General term for illness, not necessarily an immune reaction.
- Leukaemia: A type of cancer, not related to immune response.
Step 3: Conclude.
The correct term for an exaggerated immune response is "allergy."
Final Answer: \[ \boxed{\text{Allergy}} \]