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प्रश्न
It is generally observed that the children who had suffered from chickenpox in their childhood may not contract the same disease in their adulthood. Explain, giving reasons, the basics of such immunity in an individual. Name this kind of immunity.
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उत्तर
People who have suffered from chickenpox in their childhood may not contract the disease again because of acquired immunity, which is characterised by memory.
Acquired immunity is pathogen-specific. At the first encounter with the microbe, the body produces a low-intensity primary response. On subsequent encounters with the same pathogen, a secondary response occurs, which is of high intensity. This is attributed to the fact that our body has memory of the pathogen from the first encounter, which had resulted in the production of antibodies against the pathogen.
संबंधित प्रश्न
A heavily bleeding and bruised road accident victim was brought to a nursing home. The doctor immediately gave him an injection to protect him against a deadly disease.
- Write what did the doctor inject into the patient’s body.
- How do you think this injection would protect the patient against the disease?
- Name the disease against which this injection was given and the kind of immunity it provides.
Why is secondary immune response more intense than the primary immune response in humans?
Summarise the process of vaccine production
Mention role of interferons
Expand the following: SCID
Name the following:
The category of immunity required in the treatment of snake-bite.
Name the following:
The vaccine that helps to produce immunity against polio.
Differentiate between: Innate immunity and acquired immunity
Write the full forms of: WHO
Write the full forms of: ATS
Give one significant difference between primary lymphoid organs and secondary lymphoid organs. Give one example of each.
State the function of interpherons.
State the role of the thymus as a lymphoid organ. Name the cells that are released from it and mention their function.
Mention one application of the following:
Passive immunization
Innate immunity is provided by __________.
____________ is a foreign substance capable of stimulating an immune response.
In acquired immunity there is a specific mechanism for each foreign molecule. This property is known as _______.
Due to which property of acquired immune system does a second encounter of the same pathogen brings about a stronger and quicker immune response?
