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Which of the following components does not participate in innate immunity?
- a)Neutrophils
- b)Macrophages
- c)B-lymphocytes
- d)Natural killer cells
Correct answer is option 'C'. Can you explain this answer?
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Which of the following components does not participate in innate immun...
Innate immunity is the first line of defense mechanism against pathogens and foreign substances in the body. It is non-specific and present at birth. The components of innate immunity include:
1. Phagocytes: Neutrophils and macrophages are phagocytes that engulf and digest pathogens.
2. Natural killer cells: These cells recognize and destroy virus-infected cells and cancer cells.
3. Complement system: It is a group of proteins that work together to destroy pathogens.
4. Interferons: These are proteins that are released in response to viral infections and prevent the spread of the virus to other cells.
5. Inflammation: It is a response to tissue damage or infection and involves the release of chemical mediators that cause vasodilation, increased permeability, and recruitment of immune cells to the site of infection.
However, B-lymphocytes are part of the adaptive immune system and do not participate in innate immunity. They produce antibodies that specifically recognize and bind to antigens on pathogens, marking them for destruction by phagocytes or complement proteins. B-lymphocytes are activated by the presence of antigens and undergo clonal expansion to produce a large number of identical cells that can recognize and respond to the antigen. Therefore, B-lymphocytes are not part of the initial response to infection and take time to produce an effective response.
1. Phagocytes: Neutrophils and macrophages are phagocytes that engulf and digest pathogens.
2. Natural killer cells: These cells recognize and destroy virus-infected cells and cancer cells.
3. Complement system: It is a group of proteins that work together to destroy pathogens.
4. Interferons: These are proteins that are released in response to viral infections and prevent the spread of the virus to other cells.
5. Inflammation: It is a response to tissue damage or infection and involves the release of chemical mediators that cause vasodilation, increased permeability, and recruitment of immune cells to the site of infection.
However, B-lymphocytes are part of the adaptive immune system and do not participate in innate immunity. They produce antibodies that specifically recognize and bind to antigens on pathogens, marking them for destruction by phagocytes or complement proteins. B-lymphocytes are activated by the presence of antigens and undergo clonal expansion to produce a large number of identical cells that can recognize and respond to the antigen. Therefore, B-lymphocytes are not part of the initial response to infection and take time to produce an effective response.
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Which of the following components does not participate in innate immun...
Innate immunity is the type of immunity that is present in the organism by birth. Acquired immunity is the immunity that an individual acquires during life. B-lymphocytes are involved in acquired immunity and produce antibodies.
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Which of the following components does not participate in innate immunity?a)Neutrophilsb)Macrophagesc)B-lymphocytesd)Natural killer cellsCorrect answer is option 'C'. Can you explain this answer?
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