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प्रश्न
Name the cells that are released from the above-mentioned gland. Mention how they help in immunity.
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उत्तर
T- cells do not themselves produce antibodies, but help B-cells to produce them. They are also responsible for the cell-mediated immune response (CMI).
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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.
Summarise the process of vaccine production
Answer the following question:
The principle of vaccination is based on the property of the "memory" of the immune system. Taking one suitable example, justify the statement.
What are congenital diseases?
Enlist any two features of Acquired immunity.
____________ is a foreign substance capable of stimulating an immune response.
Virally infected cells release ______ to protect healthy cells from viral infection.
The epithelial barrier of the innate immune system is ____________.
Which cells deliver co-stimulatory signals for helper T-cells?
Match column I with column II and choose the correct option.
| 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 |
