Immune System & Vaccines

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  • Created by: Voltace
  • Created on: 20-05-14 20:37
What are the four stages of the immune response
Phagocytosis , T-Cell Activation , B-Cell Activation , Anti-Body Production
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What happens in phagocytosis & T-Cell Activation?
Phagocyte identifys pathogen by antigen on surface, engulfs pathy, forms phyagocytic vacuole, lysosmoses fuse into vacuole, digest pathogen, anti-gens presented. T-Cell activates - Activates by binding to protein, substance activ b-cell bind & kill
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What happens in B-Cell activation & Anti-body production?
B-Cells - Antibodies bind (complimentary to that B-cell) -> AB-AG Complex - > B-Cell reproduces ( plasma cells) (mitosis) Anti-body production -> coats pathogen , neutralizing toxin
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What is a vaccine?
Orally/Injected -> Orally could be broken down by enzymes in gut -> Antigen causes memory cells to be made ->pathogen waekened or dead -> bypasses primary straight to secondary
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What is primary and secondary response?
Primary - > Slow, Not alot of B-Cells that recognize pathogen with specific complemntary antibodys. T&B cells produce memory cells, remain in body for long time. Secondary - > Same pathogen enters body again, quicker and stronger response ->
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What is cellular & Humoral response?
T cells -> Cellular B-Cells -> Humoral
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Card 2

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What happens in phagocytosis & T-Cell Activation?

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Phagocyte identifys pathogen by antigen on surface, engulfs pathy, forms phyagocytic vacuole, lysosmoses fuse into vacuole, digest pathogen, anti-gens presented. T-Cell activates - Activates by binding to protein, substance activ b-cell bind & kill

Card 3

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What happens in B-Cell activation & Anti-body production?

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Card 4

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What is a vaccine?

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Card 5

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What is primary and secondary response?

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