Which protein can be produced by a virus-infected cell, in order to communicate with other cells the need to produce antiviral proteins?

Which protein can be produced by a virus-infected cell, in order to communicate with other cells the need to produce antiviral proteins?

A. complement
B. albumin
C. interferon
D. histamine



Answer: C

During what process are hypochlorite and hydrogen peroxide produced to destroy bacteria and inhibit viral replication?

During what process are hypochlorite and hydrogen peroxide produced to destroy bacteria and inhibit viral replication?

A. inflammation
B. phagocytosis
C. interferon production
D. complement production
E. bradykinin

Answer: B

What is the first step in the major events of the inflammation process?

What is the first step in the major events of the inflammation process?

A. formation of pus and edema
B. scar formation and/or resolution
C. vascular reactions
D. injury and mast cells releasing chemical mediators
E. activation of the complement system

Answer: D

The _____ system of blood proteins acts to lyse foreign cells and viruses.

The _____ system of blood proteins acts to lyse foreign cells and viruses.

A. humoral immunity
B. cell-mediated
C. complement
D. lymphoid
E. None of the choices is correct.

Answer: C

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

Which of the following is incorrect about complement?

Which of the following is incorrect about complement?

A. is composed of at least 20 blood proteins
B. only appears in the blood during a response to a pathogen
C. acts in a cascade reaction
D. involves a classical pathway
E. involves an alternate pathway

Answer: B