Question

At a new place you suddenly start sneezing and wheezing. The statement correctly correlate this condition
(i) This is exaggerated response of the immune system
(ii) Symptoms are watery eyes and running nose
(iii) Due to the release of chemicals like adrenaline, steroids and histamine
(iv) Antibodies produced to these are IgE type
(v) Rheumatoid arthritis is an example.

• A. i, ii, iv are true
• B. i, ii, iii, iv are true
• C. i, iii, iv are true
• D. All are correct except v

Answer 1

The correct option is A i, ii, iv are true

Allergy:-
The sudden sneezing and wheezing in a new place might occur due to the body's hypersensitive immunological response to certain unencountered antigens or allergens. This is more commonly known as an allergic reaction.

Statement i : This is exaggerated response of the immune system.

Allergy or hypersensitivity is the heightened or exaggerated immunological response that is manifested by the body against certain antigens which are specifically called allergens.

Statement ii : Symptoms are watery eyes and running nose.

Allergic reactions often result in -
● Rashes all over the body.
● Runny nose and watery eyes.
● Swelling of face and tongue.
● Laboured breathing due to choking of throat as the tissue around mouth and tongue swell up.
● Drop in blood pressure due to dilation of arteries.
● Rapid heartbeat.

Statement iv : Antibodies produced to these are IgE type.

During allergic reactions the B-cells release the IgE antibodies which not only help in eliminating the antigens but also stimulate the basophils and the mast cells to release histamine.