Multiple Choice
Which class of globulins makes powerful contributions to both nonspecific resistance and specific immunity?
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41. Immune System
Immune System
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Which of the following is an example of humoral immunity?
A
Phagocytosis of pathogens by macrophages
B
Destruction of infected cells by cytotoxic T cells
C
Release of histamine by mast cells
D
Production of antibodies by B cells
Verified step by step guidance1
Understand the concept of humoral immunity: Humoral immunity is a type of adaptive immunity mediated by B cells and involves the production of antibodies that circulate in the blood and lymph to neutralize pathogens.
Review the role of B cells: B cells are specialized lymphocytes that, when activated, differentiate into plasma cells. Plasma cells produce antibodies specific to antigens present on pathogens.
Compare humoral immunity to other immune responses: For example, phagocytosis by macrophages is part of innate immunity, cytotoxic T cells are involved in cell-mediated immunity, and histamine release by mast cells is part of the inflammatory response.
Identify the correct example of humoral immunity: Among the options provided, the production of antibodies by B cells is the hallmark of humoral immunity because it directly involves the adaptive immune system's response to pathogens.
Conclude that the production of antibodies by B cells is the correct answer, as it aligns with the definition and function of humoral immunity.
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