Which statement is correct for opsonins?
A) They enhance phagocytosis by linking the foreign cell to a phagocytic cell.
B) They are secreted by phagocytes.
C) They include antibodies and one of the activated proteins of the complement system.
D) They both enhance phagocytosis by linking the foreign cell to a phagocytic cell and include antibodies and one of the activated proteins of the complement system.

Question

Quizplus · Accepted Answer

Opsonins are molecules that enhance phagocytosis by linking the foreign cell to a phagocytic cell. Antibodies and one of the activated proteins of the complement system are examples of opsonins. Therefore, statement D is correct as it includes both of these points. Statements A, B, and C are all partially correct but do not encompass the full definition of opsonins.

Which Statement Is Correct for Opsonins