The exaggerated response of the immune system to certain antigens present in the environment is known as:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Allergy
Option (1) Allergy — Correct. Of the options, only allergy names this exaggerated response. Auto-immunity is an attack on the body’s own cells, and active and passive immunity are normal forms of protection.
Note: A similar question was also asked in CUET (UG) 2026 on 14-05-2026 (Slot 1), and in CUET (UG) 2023 on 11-06-2023 (Slot 3).
NCERT Extract:
Allergies – “The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The substances to which such an immune response is produced are called allergens. The antibodies produced to these are of IgE type. Common examples of allergens are mites in dust, pollens, animal dander, etc.”