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प्रश्न
Many people experience allergic symptoms of sneezing or wheezing on exposure to certain substances in the environment. Give two examples of such substances. Which type of antibodies are produced by the body in response to these substances? Mention the role of mast cells in this kind of allergic response.
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उत्तर
The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The antibodies produced to these are of IgE type. Common examples of allergens are mites in dust, pollens, animal dander, etc. Allergy is due to the release of chemicals like histamine and serotonin from the mast cells.
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संबंधित प्रश्न
Match the items given under column I with those given under column II.
| Column A | Column B | ||
| 1 | Dust allergy | a. | Nuts |
| 2 | food allergy | b. | Pollen |
| 3 | Seasonal allergy | c. | Asthma |
What are allergens?
Name any three allergens.
Define the term “allergy”.
Write short (1-2 sentences) note on the following:
Allergy
Asthma may be attributed to:
Increased asthmatic attacks in certain seasons are related to:
Inflammatory responses in allergy are caused by the release of one of the following by mast cells:
In the metropolitan cities of India, many children are suffering from allergy/asthma. What are the main causes of this problem. Give some symptoms of allergic reactions.
A boy developed some allergic reactions when he straight entered into his air conditioned room after a game of football outside his house. Write any two symptoms that could be noticed in such condition. How does our body combat such conditions?
