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प्रश्न
Define the term “allergy”.
उत्तर
Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to something in the environment that usually causes no adverse effects to most people. These diseases include hay fever, dermatitis, asthma, food allergies, etc.
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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 |
Name any three allergens.
Write short (1-2 sentences) note on the following:
Allergy
Increased asthmatic attacks in certain seasons are related to:
For a person who has an allergy, the type of antibody produced in his body is ______.
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 person shows strong unusual hypersensitive reactions when exposed to certain substances present in the air. Identify the condition. Name the cells responsible for such reactions. What precaution should be taken to avoid such reactions.
Compare the life style of people living in the urban areas with those of rural areas and briefly describe how the life style affects their health.
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.
