ATI RN
Lymphatic System Multiple Choice Questions and Answers Questions
Question 1 of 5
In addition to CD40 ligation, which of the statements below identify a cytokine that induce a correct antibody isotype?
Correct Answer: B
Rationale: IL-4/IL-13 drive IgE switching (allergy), while IFNγ (IgG) and TGFβ (IgA) induce other isotypes.
Question 2 of 5
Which of the following statements best characterizes an antibody?
Correct Answer: D
Rationale: Antibodies are proteins induced by antigens; not RNA , albumin-like , or four identical subunits .
Question 3 of 5
In agglutination reactions, the antigen is a_____________ and in precipitation reactions, the antigen is a_____________ ______...
Correct Answer: A
Rationale: Agglutination uses whole cells , precipitation uses soluble antigens; not reversed or specific types (C, D).
Question 4 of 5
Instant and immediate protection obtained through:
Correct Answer: C
Rationale: Passive immunity provides instant protection; active (A, D) takes time.
Question 5 of 5
Influenza viruses infect humans and elicit an immune response that is often insufficient to protect the individual from sickness or death. Which of the following structures are on influenza viruses, allowing them to be recognized by the human immune system?
Correct Answer: C
Rationale: The molecules on the virus that are not on host cells are the pathogen-associated molecular patterns. The pattern recognition receptors are found on host cells and molecules. MHC I and II molecules are present on all nucleated host cells but not on viruses. The somatically generated receptors are on host T and B lymphocytes.