ATI RN
Immune System Multiple Choice Questions Questions
Question 1 of 5
Which of the following protects our body against disease-causing pathogens?
Correct Answer: B
Rationale: The immune system defends against pathogens.
Question 2 of 5
An antigen-antibody complex may
Correct Answer: D
Rationale: Antigen-antibody complexes can do all: activate complement, attract phagocytes, and neutralize toxins.
Question 3 of 5
Interferons are very special defence mechanisms which operate by:
Correct Answer: B
Rationale: Interferons bind neighboring cells, inducing antiviral states.
Question 4 of 5
Mast cells
Correct Answer: A
Rationale: Mast cells are bone marrow-derived; they drive type I , release PAF , and don't phagocytose .
Question 5 of 5
General characteristics of the complement system includes proteins that are:
Correct Answer: A
Rationale: Complement proteins are liver-made and circulate; not antigen-specific , not only spleen , or only post-stimulation .