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PCB 3233 FINAL EXAM|QUESTIONS AND 100% CORRECT WELL DETAILED ANSWERS|LATEST UPDATE!!!!2025/2026|GUARANTEED PASS|GRADED A+

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PCB 3233 FINAL EXAM|QUESTIONS AND 100% CORRECT WELL DETAILED ANSWERS|LATEST UPDATE!!!!2025/2026|GUARANTEED PASS|GRADED A+

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CORRECT WELL DETAILED ANSWERS|LATEST




What are the primary adaptive immune cells? - ANSWER B and T cells



What cells are lymphocytes? - ANSWER NK, B, and T cells



What does the red pulp of the spleen do? - ANSWER erythrocyte (RBC) filtration



What does the white pulp of the spleen do? - ANSWER leukocyte (WBC) filtration



inactivation by Factor H and I results in an opsonin

-NOT a convertase




this is what C - ANSWER ic3b



DAF stands for - ANSWER decay accelerating factor



MCP stands for - ANSWER membrane cofactor protein



inhibit the activity of bacterial proteases - ANSWER alpha2-macroglobulins




1

,are the human version of MAC complex, which creates pores/holes in pathogenic surfaces -
ANSWER defensins



What cell makes up the highest concentration of leukocytes? - ANSWER neutrophils



pus forming - ANSWER pyogenic



fever inducing pyogenic or pyrogenic - ANSWER pyrogenic



CR1 binds to - ANSWER C3b



CR2 binds to - ANSWER C3d



CR3 binds to - ANSWER iC3b



CR4 binds to what on G bacteria - ANSWER LPS on G- bacteria



TLR-3 binds to what virsus - ANSWER dsRNA viruses



TLR-4 binds to what on bacteria - ANSWER LPS on G- bacteria



TLR-5 binds to - ANSWER Flagellin



TLR-7 binds to virsus - ANSWER ssRNA viruses



recognize bacterial cell components 2 N - ANSWER NOD-1/NOD-2




2

,a form of cytokine that directs leukocyte traff - ANSWER chemokines



cytokines



proinflammotory

IL-1,2,3,4,5,6,7,8,9,10,11,12, CX, and T

name the 5 hint:IL-1 - ANSWER proinflammatory mediators ( IL-1, IL-6, IL-12, CXCL8,
and TNF-alpha)



What cells are NOT in germline configuration? - ANSWER mature B and mature T cells



-first Ab produced - ANSWER IgM



Pentameric - ANSWER IgM



activateis complement



which IG ? 2 - ANSWER Igm IgG



can cross mucosal cell via polyg Ig recepor - ANSWER IgM and dimeric IgA



-highest concentration in blood - ANSWER IgG



-good for neutralization/opsonization - ANSWER IgG



crosses placenta via the FcRn/FcRB/Brambell receptor - ANSWER IgG




3

, can be monomeric or dimeric



where are they found? - ANSWER IgA



monomeric=circulation

dimeric=gut



-most abundant in the body



which Ig - ANSWER IgA



-involved in allergic reactions and parasites - ANSWER IgE



-present in serum in low levels: IgG,A,M,E - ANSWER IgE



high affinity for FCeRII found on mast cells, basophils, and activated eosinophils -
ANSWER IgE



-found on the surface of mature, naive B cells (along with IgM) - ANSWER IgD



-complementary determining region and hypervariable loop are synonymous -
ANSWER CDR-X/HV-X



What is the most diverse CDR and HV? - ANSWER CDR3/HV3



Somatic recombination occurs in what2 lymphotcyes? - ANSWER B and T lymphocytes



Somatic hypermutation occurs in what lymphoctye? - ANSWER B lymphocytes

4

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