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प्रश्न
What are interferons? How do interferons check infection of new cells?
उत्तर
Interferons are natural proteins produced by the cells of immune system in response to foreign agents such as viruses, tumor cells and parasites and protect non-infected cells from further infection. Interferons inhibit the viral replication within host cells, activate natural killer cells and macrophages, increases antigen presentation to lymphocytes, and induce the resistance of host cells to viral infection. When the antigen is presented to matching T-cells and B-cells, these cells multiply and remove the foreign substance.
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संबंधित प्रश्न
Differentiate between
Active and passive immunity
The entire body is protected from attack from its own immune system due to the ______
Which of the following are characters of acquired immunity?
Phagocytic barriers of innate immunity involve ______
The most significant percentage of immunoglobulin in cow's milk is ______.
Which blood cells secrete antibodies?
Which of the following immunoglobulin constitute the largest percentage in human milk?
The substance produced by a cell in viral infection that can protect other cells from further infection is ______.
In human plasma, five different types of immunoglobulins are found.
Which type of immunoglobulin is responsible for allergic reactions?
Give example of active and passive immunity.
