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Questions and Answers
Which of the following best describes one of the physical barriers of innate immunity?
Which of the following best describes one of the physical barriers of innate immunity?
- Increased vascular permeability in the lungs
- Production of acute phase proteins in mucosal surfaces
- Presence of intraepithelial lymphocytes (correct)
- Secretion of interleukin-1 by the skin
What is the main function of lysozyme in innate immunity?
What is the main function of lysozyme in innate immunity?
- Increases vascular permeability
- Breaks down peptidoglycan in bacteria (correct)
- Stimulates production of acute phase proteins
- Traps pathogens for removal in mucosal surfaces
Which protein effector found in skin and mucosal secretions is involved in the innate immune response?
Which protein effector found in skin and mucosal secretions is involved in the innate immune response?
- Interleukin-6
- Transferrin
- Complement
- Antimicrobial peptides (defensins & cathelicidins) (correct)
How do neutrophils and macrophages kill bacteria within the phagolysosome?
How do neutrophils and macrophages kill bacteria within the phagolysosome?
What is the role of an activated macrophage in the innate immune response?
What is the role of an activated macrophage in the innate immune response?
What is the function of Interleukin-8 (IL-8) in the immune response?
What is the function of Interleukin-8 (IL-8) in the immune response?
Which molecule is responsible for activating NK cells and influencing lymphocyte differentiation?
Which molecule is responsible for activating NK cells and influencing lymphocyte differentiation?
What is the primary function of Tumor necrosis factor-α (TNF-α) in the immune response?
What is the primary function of Tumor necrosis factor-α (TNF-α) in the immune response?
In the context of non-specific phagocytic cells recognizing foreign tissue, what is the role of PRR (Pattern Recognition Receptor)?
In the context of non-specific phagocytic cells recognizing foreign tissue, what is the role of PRR (Pattern Recognition Receptor)?
What is the significance of non-specific phagocytic cells wandering through the body?
What is the significance of non-specific phagocytic cells wandering through the body?
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