ATI RN
Immune System Multiple Choice Questions and Answers Questions
Question 1 of 5
What is the major structural difference between B cell antigen receptor (BCRs) and secreted antibody?
Correct Answer: B
Rationale: BCRs have a transmembrane tail, while secreted antibodies lack it, retaining two binding sites.
Question 2 of 5
Cell-associated differentiation antigens (CDs) are functional cell surface proteins or receptors that can be measured in situ.
Correct Answer: D
Rationale: All statements (A, B, C) about CDs are true, making D correct; CDs aid disease management, are low in serum, and many are known.
Question 3 of 5
An example of type III immune complex disease is:
Correct Answer: C
Rationale: Serum sickness is Type III, immune complex-mediated; not dermatitis , rejection , or atopy .
Question 4 of 5
Which of the following antibody is a prominent antigen receptor expressed on B Cells?
Correct Answer: C
Rationale: IgM is the main B-cell receptor with IgD; IgG is secreted later.
Question 5 of 5
The study of the immune system in all organisms is known as?
Correct Answer: D
Rationale: Immunology studies the immune system; not microbiology or others (B, C).