41. Immune System
Adaptive Immunity
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- Textbook Question
What is the primary difference between the innate and adaptive immune responses? a. The innate immune response does not distinguish between pathogens, while the adaptive immune response does. b. Only the innate immune response is activated by antigens. c. The adaptive immune response generates immunological memory and is more specific than the innate immune response. d. The innate immune response does not kill cells; the adaptive immune response does.
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An epitope associates with which part of an antigen receptor or antibody? a. the tail b. the heavy-chain constant regions only c. variable regions of a heavy chain and light chain combined d. the light-chain constant regions only
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Which statement best describes the difference between responses of effector B cells (plasma cells) and those of cytotoxic T cells? a. B cells confer active immunity; cytotoxic T cells confer passive immunity. b. B cells respond the first time a pathogen is present; cytotoxic T cells respond subsequent times. c. B cells secrete antibodies against a pathogen; cytotoxic T cells kill pathogen-infected host cells. d. B cells carry out the cell-mediated response; cytotoxic T cells carry out the humoral response.
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What is the difference between an epitope and an antigen?
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