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Allergies MCQ Questions & Answers - Biology Class 12

Allergies MCQs : This section focuses on the "Allergies" in Biology Class 12. These Multiple Choice Questions (MCQs) should be practiced to improve the Biology Class 12 skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

An __________ is an immunological hypersensitivity mediated by immunoglobulin E antibody (IgE).

A. autoimmunity
B. allergy
C. Both A and B
D. None of the above

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Question 2

The allergies are mainly caused by an external trigger such as pollens, certain foods, medicines, insects, animals, etc.

C. Can be true or false
D. Can not say

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Question 3

Examples of Allergies?

A. skin allergy
B. sinusitis
C. asthma
D. All of the above

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Question 4

Anaphylactic shock is _______

A. Mild local reaction to an allergen
B. The severe reaction of the whole body
C. Severe local reaction
D. The mild reaction of the whole body

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Question 5

In response to the allergens, our body produces antibodies called?

A. IgB
B. IgF
C. IgE
D. IgD

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Question 6

Hypersensitivity to an allergen is due to _________

A. Food Habits
B. Life style
C. Improper functioning of the immune system
D. Environment

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Question 7

The inflammatory response in allergy is due to the release of ________ by mast cells.

A. Antibodies
B. Antigens
C. Mucus
D. Histamine

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Question 8

Which of the following usually cannot act as an allergen?

A. Pure Water
B. Pollen
C. Dust
D. Shellfish

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Question 9

Allergies are caused due to the release of chemicals such as histamine and serotonin.

A. Yes
B. No
C. Can be yes or no
D. Can not say

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Question 10

Which of the following is/are true about Allergies?

A. symptom results in a general feeling of fatigue and sickness
B. Itching is a common symptom of allergies
C. allergies cause some sort of redness or swelling
D. All of the above

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