The classical reactions of C1, C2 and C4 are short-circuited. C3a and C3b continue to react in the same manner as in the classical pathway. Attraction of phagocytes . Chemotactic factors C3a and C5a attract phagocytes to the site. Enhancement of phagocytic engulfment .
Lysozyme gains access to peptidoglycan and completes destruction of the bacterial cell.