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EXPLAIN THE PICTURE Examine the picture of immune complex-mediated hypersensitivity and answer the questions about it. B IgG
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The letter 'C' shows the immune complex. Immune complex is also known as Antigen-Antibody complex. The complex formed is three dimensional. When a free Ag enters in the body , specific antibodies are formed against it (may already be present in the body if the Ag has been previously encounterd). In order to kill the Ag , Antibodies bind with it and help in phagocytosis by many methods. One such method is Complement system. The given diagram depicts the function of complement system.

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