Which does NOT describe humoral immunity? Group of answer choices a. Antibodies are secreted by T-helper cells b. Humoral immunity is effective against circulating toxins c. Some B cells become memory cells d. cytotoxic t cells can make antibodies

Which hypersensitivities are T-cell mediated?a. type I b. type II c. type IIId. type IV

Which would you predict would have less side effects, chemotherapy or CAR T-cell therapy? Justify your answer using complete sentences.

Synthesis of antibodies is part of: a. Innate immunity b. Adaptive immunity c. Active Passive immunity d. Artiicial passive immunity

MHCII molecules will bind __________ and locate to the cell surface.a. T-independent type antigensb. endogenous antigen  c. autoantigens d. exogenous antigen

What is the function of cytotoxic T-cells? Select one: a. They are long lived cells that provide life long immunity b. They kill cells that have the antigen they recognize  c. They pump out chemical weapons & stimulate other T & B cells d. They produce and secrete antibodies

An MHC class II/antigen complex on the surface of an antigen-presenting cell (APC) binds to a T-cell receptor. What results from this interaction? Select one: a. Other immune cells are stimulated to respond to the antigen. b. Other immune cells are inhibited. c. The T cell responds by directly destroying the APC. d. The antigen is phagocytized by the T cell.

Which of the following statements are true for antigen presentation.   a. Antigen presentation means that other cells attach the pathogen first and present it to T cells.   b. Antigen-presenting cells display protein fragments, resulting from the digestion of the pathogen, in complex with MHC receptor to B cells   c. Antigen presenting cells display protein fragments, resulting from the digestion of the pathogen, in complex with MHC receptor on their surface.   d. Antigen-presenting cells are phagocytic cells   e. Antigen presentation is required for T cell activation   f. Cytokines released by macrophages are required for T cell activation   g. T cell receptors recognize the MHC receptors in complex with antigen fragments displayed by antigen-presenting cells.   h. Phagocytic cells are involved in innate immunity. Therefore they have no role in T-cell activation

The immune system includes the various responses the body uses to ensure survival in the presence of disease-causing agents. Identify the example of innate immunity.   A. Infected host cells are killed by toxic proteins from cytotoxic T cells.   B. Toll-like receptors bind to foreign molecule fragments to initiate immune response.   C. CD4 accessory proteins on the helper T cell surface bind to class II MHC molecules.   D. IgE antibodies recognize and attach to pollen grains, stimulating an allergic reaction.

Which of the following cell types is unable to interact with naive T cells and induce their activation? (Select all that apply.) a. B cells b. macrophages resident in infected tissues c. macrophages resident in secondary lymphoid tissue d. interdigitating reticular cells e. immature dendritic cells.