Macrophages are immune system cells that are derived from monocytes, have receptors for opsonins (compounds released by the immune system that coat microorganisms and enhance phagocytosis), and are found throughout the body where they take up residence in specific tissues. All of these statements are correct, hence option D is the best choice.

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Macrophages

Question 33

Multiple Choice

Macrophages

A) are derived from monocytes.
B) have receptors for compounds released by the immune system that coat microorganisms and enhance phagocytosis.
C) spread throughout the body of animals and take up residence in specific tissues.
D) All of the choices are correct.

Correct Answer: