ATI RN
Lymphatic and Immune System Test Questions Questions
Question 1 of 5
The definition, 'Innate and adaptive immune cell secreted protein that act as signalling molecules in an immune response' corresponds to?
Correct Answer: B
Rationale: Cytokines are signaling proteins secreted by immune cells, unlike surfactants, AMPs (kill pathogens), or lysozymes (enzymes).
Question 2 of 5
CD8+ T cell activation requires CD4+ T cell help because
Correct Answer: A
Rationale: CD4+ help (via cytokines like IL-2) regulates CD8+ activation, preventing excessive cytotoxicity.
Question 3 of 5
All of the following are true about antibodies, EXCEPT which one?
Correct Answer: B
Rationale: Antibodies are glycoproteins , fix complement , and are on B-cells ; they vary in sequence due to diversity.
Question 4 of 5
B cells mature in the_____________.. while T cells mature in the
Correct Answer: C
Rationale: B cells mature in bone marrow/GALT, T cells in thymus ; not thymus first or spleen/liver (B, D).
Question 5 of 5
B lymphocytes is related to:
Correct Answer: A
Rationale: B cells relate to Bursa Fabricius in birds, bone marrow in humans; not thymus .