ATI RN
Immune System Multiple Choice Questions Questions
Question 1 of 5
A characteristic of pathogen produced superantigens is that they:
Correct Answer: D
Rationale: Superantigens nonspecifically overactivate T cells via MHC-TCR bridging, evading specific responses.
Question 2 of 5
A tissue graft between two people who are not genetically identical is termed a:
Correct Answer: D
Rationale: Allograft is between non-identical humans; isograft is identical, xenograft is cross-species.
Question 3 of 5
The order of percent of total immunoglobulin in serum is
Correct Answer: D
Rationale: Serum order is IgG (~80%), IgA, IgM, IgD, IgE ; not other sequences (A-C).
Question 4 of 5
Choose the correct statement about Passive Immunity?
Correct Answer: D
Rationale: All (A, B, C) are true for passive immunity; thus, D is correct.
Question 5 of 5
B Cells are activated by
Correct Answer: D
Rationale: Antigens bind to B cell receptors to activate them, unlike complement, antibodies, or interferon (which modulate responses).