The membrane attack stage of the complement cascade involves

The membrane attack stage of the complement cascade involves



A. initiation of the cascade.
B. production of inflammatory cytokines.
C. a ring-shaped protein that digests holes in bacterial cell membranes and virus envelopes.
D. cleaving of C3 to yield C3a and C3b.
E. C1q binding to surface receptors on a membrane.





Answer: C


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