Multiple Choice
Antimicrobial proteins are part of the ______ immune system.
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19. Innate Immunity
Introduction to Innate Immunity
Multiple Choice
Which term refers to any molecule that elicits an immune response in the host?
A
Antigen
B
Cytokine
C
Antibody
D
Pathogen
Verified step by step guidance1
Understand the question: It asks for the term that describes any molecule capable of triggering an immune response in the host.
Recall definitions: An antigen is a molecule or molecular structure that the immune system recognizes as foreign and can provoke an immune response.
Differentiate from other options: Cytokines are signaling proteins released by cells to communicate during immune responses, antibodies are proteins produced by B cells that specifically bind to antigens, and pathogens are organisms that cause disease.
Identify the correct term: Since the question focuses on the molecule that elicits the immune response, the correct term is 'antigen'.
Summarize: The antigen is the key molecule recognized by the immune system, leading to activation of immune cells and production of antibodies.
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