ATI RN
Immune System Quiz Questions Questions
Question 1 of 5
Which of the following statements does not describe an antibody (Ab) effector function?
Correct Answer: B
Rationale: Antibodies don't form pores (complement does via MAC); they mediate ADCC, neutralization, opsonization, and complement activation.
Question 2 of 5
All of the following are true concerning IgM antibodies EXCEPT which one
Correct Answer: C
Rationale: IgM is a glycoprotein , fixes complement , and is on B-cells ; allergies are IgE-mediated.
Question 3 of 5
Which of the following conveys the longest-lasting immunity to an infectious agent?
Correct Answer: C
Rationale: Natural active immunity is longest-lasting due to memory; passive (A, B) is temporary.
Question 4 of 5
Antibodies disappear very quickly in which immunity?
Correct Answer: C
Rationale: Passive immunity has short-lived antibodies; active (A, D) is longer-lasting.
Question 5 of 5
The skin, body hair, cilia, eyelashes, the respiratory tract, and endothelia throughout the body serve as?
Correct Answer: B
Rationale: These are physical barriers ; not cellular or cytokine .