Immune System

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What is the Immune System?

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It is a system that defends our body against pathogens and keeps us healthy and strong.

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What is the first line of defense in the immune system?

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The first line of defense includes physical and chemical barriers such as skin and mucous membranes.

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What is the second line of defense in the immune system?

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The second line of defense involves innate immune responses, including inflammation and phagocytosis.

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What is the third line of defense in the immune system?

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The third line of defense is the adaptive immune response, which involves specific recognition of pathogens by lymphocytes.

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What is Immunology?

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A branch in biology that covers the study of immune systems in all organisms.

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What is a Resistance Protein?

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It is a plant protein that is activated when pathogen effector molecules secreted by pathogens get inside the cell.

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What role do antibodies play in the immune system?

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Antibodies are proteins produced by B cells that specifically bind to antigens to neutralize pathogens.

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What are antigens?

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Antigens are substances that trigger an immune response, often found on the surface of pathogens.

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What is the function of T cells in the immune response?

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T cells are a type of lymphocyte that play a central role in cell-mediated immunity.

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What is the difference between innate and adaptive immunity?

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Innate immunity is the body's immediate response to pathogens, while adaptive immunity develops over time and provides long-lasting protection.