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प्रश्न
Differentiate the following and give examples of Active and passive immunity
उत्तर
| Active immunity | Passive immunity |
| It is a type of acquired immunity in which the body produces its own antibodies against disease-causing antigens | It is a type of acquired immunity in which readymade antibodies are transferred from one individual to another. |
| It has a long lasting effect. | It does not have long lasting effect. |
| It is slow. It takes time in producing antibodies and giving responses | it is fast. It provides immediate relief. |
| Injecting microbes through vaccination inside the body is an example of active immunity. | Transfer of antibodies present in the mother’s milk to the infant is an example of passive immunity |
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संबंधित प्रश्न
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Explain the various types of acquired immunity.
Which cells are play a major role in non-specific defence against viral infections and tumors?
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____________ are previously sensitized cells which retain the sensitization memory for a long time in the future.
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| Column I | Column II | ||
| i. | Specificity | a. | Lymphocytes produced against each particular foreign molecule |
| ii. | Diversity | b. | Self-cells are not attacked by immune system of the own body |
| iii. | Memory | c. | Immune system works against multiple pathogens |
| iv. | Discrimination between self and non-self | d. | Stronger immune response on second encounter |
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______ provides a physical barrier.
