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Effects of the Complement System

19. Innate Immunity / Effects of the Complement System / Problem 3

During inflammation, the activated C3 splits into C3a and C3b. What is the primary function of C3a?

A

They bind to mast cells.

B

They bind to the microbe.

C

They engulf the pathogenic cells.

D

They activate the macrophage.

E

None of the above.

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