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Exam (elaborations)

MICB 4131 QUIZ 3 QUESTIONS WELL CORRECTLY LATEST UPDATE 2026
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MICB 4131 QUIZ 3 QUESTIONS WELL CORRECTLY LATEST UPDATE 2026 steps of lectin pathway - Answers 1. MBL/ficolin binding to lectins on microbial surface 2. Activation of MASP-1 and MASP-2 3. MASP-2 cleaves c4 into c4a and c4b (bind to cell surface) 4. MASP-2 cleaves c2 into c2a (binds c4b) and c2b 5. c4bc2a is now an active c3 convertase cleaving c3 into c3b (bind to cell surface) and c3a costimulation for CD4 T cells includes - Answers B7 (APC) and CD28 (T cell) IL6 signal 3 cytokine le...
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MICB 4131 QUIZ 2 QUESTIONS WELLL ANSWERED LATEST UPDATE 2026
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May 2026

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MICB 4131 QUIZ 2 QUESTIONS WELLL ANSWERED LATEST UPDATE 2026 TNF-alpha - Answers macrophage, NK, T cells; promotes inflammation, vasodilation IFN-beta - Answers All cells; induces antiviral state, increases MHC I expression IL-2 - Answers Tc cells; T and B cell proliferation IL-4 - Answers Th2 cells; promotes Th2 differentiation, isotype switch to IgE IL-5 - Answers TH2 cells, stimulate growth and differentiation of eosinophils TGF-beta - Answers T cells, macrophages; inhibits T...
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MICB 4131 - EXAM 2 QUIESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026
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May 2026

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MICB 4131 - EXAM 2 QUIESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026 there is only 1 type of effector CD4 T cell - Answers false negative selection occurs in lymph nodes where most self antigen is found - Answers false positive selection is necessary to ensure your T cells can recognize foreign MHC - Answers false clonal expansion refers to - Answers (none of the above) effector T cells are - Answers antigen-experienced memory T cells are - Answers antigen-experienced B and T ...
TutorJosh
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MICB 4131 EXAM 3 QUESTIONS WELL ANSWERED LATEST UPDATE 2026
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May 2026

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MICB 4131 EXAM 3 QUESTIONS WELL ANSWERED LATEST UPDATE 2026 What are the three signals needed for T cell activation? - Answers 1. MHC/peptide + TCR 2. Co stimulation 3. Cytokine secreted by APC What are the two molecules involved in costimulation for T cell activation? - Answers B7.1/B7.2 engages CD28 CD4 Th1 cells activate what type of cell? - Answers Macrophages What do macrophages increase expression of? - Answers CD40 and TNF receptor What do Th1 cells initiate if pathogens pers...
TutorJosh
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Exam (elaborations)

MICB 4131 EXAM 4 QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026
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May 2026

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MICB 4131 EXAM 4 QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026 1. Innate immunity is specific for individual pathogens, and is able to discriminate between closely related molecular structures. - Answers False 2. Adaptive immunity recognizes a broad class of pathogens. - Answers False 3. Toll-like receptors: - Answers A. Induce the secretion of cytokines, chemokines, and anti-microbial proteins/molecules B. Found on intracellular membranes in organelles and on the cell surface membra...
TutorJosh
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Exam (elaborations)

MICB 4131 EXAM 2 QUESTIONS WITH VERFIED SOLUTIONS LATEST UPDATE 2026
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May 2026

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MICB 4131 EXAM 2 QUESTIONS WITH VERFIED SOLUTIONS LATEST UPDATE 2026 IL-1 - Answers induction of inflammation IL-2 - Answers secreted by T Cells, promotes B, T, NK and AICD proliferation IL-4 - Answers secreted by TH2 cells, promotes differentiation of T to TH2 cells and isotype switch to IgE IL-5 - Answers secreted by TH2, activates and generates eosinophils IL-7 - Answers made by stromal cells, are required for survival of naive T and B cells IL-15 - Answers required for memory T...
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Exam (elaborations)

MICB 4131 EXAM 1 QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026
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MICB 4131 EXAM 1 QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026 Immune system protects from disease - Answers Including heritable disorders (genetic ex. SCID), acquired disorders (infections ex HIV), aging How does Immune system participate in disease? - Answers Allergy, Autoimmunity, Immunopathology, Graft rejection, Graft vs host disease (GVHD) Observed that those exposed to cowpox were protected against smallpox, however, did not know the cause of disease, prompted the term vacci...
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