Multiple Choice
Which of the following cells is primarily responsible for the production of antibodies in the adaptive immune response?
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41. Immune System
Immune System
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Which type of immune response is most directly effective against extracellular bacteria?
A
Humoral immune response
B
Cell-mediated immune response
C
Allergic response
D
Innate immune response
Verified step by step guidance1
Understand the types of immune responses: The immune system has different branches, including the humoral immune response, cell-mediated immune response, allergic response, and innate immune response. Each plays a specific role in defending the body against pathogens.
Define the humoral immune response: This response involves B cells and the production of antibodies that target extracellular pathogens, such as bacteria present outside cells in the bloodstream or tissues.
Define the cell-mediated immune response: This response involves T cells and is primarily effective against intracellular pathogens, such as viruses or bacteria that have invaded host cells.
Evaluate the role of the innate immune response: This is the body's first line of defense and includes non-specific mechanisms like physical barriers, phagocytosis, and inflammation. While it provides initial protection, it is not as specific or directly effective against extracellular bacteria as the humoral response.
Conclude that the humoral immune response is most directly effective against extracellular bacteria because it specifically targets pathogens outside cells using antibodies, which neutralize and mark them for destruction by other immune cells.
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