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C-reactive protein is an acute phase protein released by neutrophils that acts as an opsonin when bound to bacteria.

a-true
b-false

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Final answer:

The statement regarding C-reactive protein being released by neutrophils is false; CRP is produced by the liver and acts as an opsonin in the immune response.

Step-by-step explanation:

The statement that C-reactive protein is an acute phase protein released by neutrophils is false. C-reactive protein (CRP) is actually synthesized by the liver in response to factors released by macrophages and fat cells (adipocytes). It is part of the body's innate immune system and plays a vital role in the immune response by binding to the surface of dead or dying cells (and some types of bacteria) to act as an opsonin.

This enhances the phagocytosis of these cells or bacteria by macrophages and neutrophils. While neutrophils are indeed involved in the immune response and are capable of releasing proteins such as cytokines, CRP is not among the proteins they secrete.

User Claudio King
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