ATI RN
Questions on Immune System Questions
Question 1 of 5
Which of the following immunoglobulin is the most abundant immunoglobulin in newborns?
Correct Answer: C
Rationale: IgG is abundant in newborns via maternal transfer; IgM rises later.
Question 2 of 5
A living microbe with reduced virulence that is used for vaccination is considered:
Correct Answer: D
Rationale: Attenuated means weakened. While making live attenuated vaccine the virulence of the microorganism is lost but its antigenic characteristics are retained.
Question 3 of 5
Interferons:
Correct Answer: D
Rationale: Interferons induce antiviral enzymes in target cells, not specific to viruses or limited to five families.
Question 4 of 5
The inflammatory response includes all of the following except
Correct Answer: A
Rationale: Inflammation involves vasodilation , fever , and phagocytes ; constriction opposes increased flow.
Question 5 of 5
Complement and antibody are similar in that both:
Correct Answer: B
Rationale: Both enhance phagocytosis (opsonization); not mast cell-derived or binding sites .