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Discussion

Antibodies are produced by

  • A.Histiocytes
  • B.Mast cells
  • C.Plasma cells
  • D.Fibroblasts

Answer: C

Correct answer: Plasma cells

Plasma cells are activated B cells that have turned into antibody factories: an expanded endoplasmic reticulum and an output of thousands of molecules a second, all of one specificity. Histiocytes are tissue macrophages, mast cells release inflammatory mediators, and fibroblasts make connective tissue.

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