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Type IV hypersensitivity: Quiz


Question 1: Activated CD8+ T cells destroy target cells on contact while activated macrophages produce hydrolytic ________ and, on presentation with certain intracellular pathogens, transform into multinucleated giant cells.
Enzyme inhibitorEnzymeProteinCofactor (biochemistry)

Question 2: CD4+ T cells secrete IL-2 and ________ gamma, further inducing the release of other Type 1 cytokines, thus mediating the immune response.
InterferonPeginterferon alfa-2aInterferon alfa-2bInterferon-gamma

Question 3: ________ [2]
AllergySerum sicknessTransfusion-associated graft versus host diseaseGraft-versus-host disease

Question 4: CD8+ cytotoxic T cells and CD4+ ________ recognize antigen in a complex with either type 1 or 2 major histocompatibility complex.
B cellRegulatory T cellImmune systemT helper cell


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