ATI RN
Immune System Multiple Choice Questions and Answers Questions
Question 1 of 5
Hepatitis is an example of ___________.
Correct Answer: D
Rationale: Hepatitis vaccines (e.g., Hep B) are recombinant, using engineered antigens.
Question 2 of 5
When an antigen-presenting cell (APC) presents an antigen to a T cell, it must
Correct Answer: D
Rationale: APCs present antigens via MHC to T cells.
Question 3 of 5
Which of the following is the most special characteristic of the adaptive immune system?
Correct Answer: C
Rationale: Memory T cells enable rapid, specific recall, a hallmark of adaptive immunity.
Question 4 of 5
Regarding mast cells, which statement is false
Correct Answer: D
Rationale: Basophils are circulating, not tissue-high; morphine , IgE , and C5a are true.
Question 5 of 5
Which component is found in both the classical and alternative pathways and is central to complement activation?
Correct Answer: B
Rationale: C3 is central to both pathways; C1q is classical only, C5a and C9 are downstream.