ATI RN
Immune System Exam Questions Questions
Question 1 of 5
In agglutination reactions, the antigen is a in precipitation reactions, the antigen is a
Correct Answer: A
Rationale: Agglutination involves whole cells (e.g., bacteria), while precipitation involves soluble molecules (e.g., proteins), matching the reaction mechanisms.
Question 2 of 5
Erythroblastosis fetalis can result if
Correct Answer: C
Rationale: Rh- mother sensitized to Rh+ fetus causes fetal RBC destruction in subsequent Rh+ pregnancies; other scenarios (A, B, D) don't fit.
Question 3 of 5
Which cell is correctly matched with its secretion or function?
Correct Answer: B
Rationale: Mast cells release histamine; T cells don't make IL-1, macrophages don't secrete IgA.
Question 4 of 5
The cytotoxic T cells recognize Antigen in association with_____________.
Correct Answer: C
Rationale: Cytotoxic T cells recognize MHC I ; not MHC II or III . Note: Sol says D, but C is standard.
Question 5 of 5
The spleen can be described as
Correct Answer: B
Rationale: The spleen resembles a large lymph node, filtering blood, not specifically producing T or B cells.