Bio Ch43 Activities Quiz – Flashcards
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Which of these cells is a phagocytic leukocyte that can engulf a foreign bacterium?
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macrophage
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_____ interact with the antigen-class II MHC complex presented by macrophages.
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Helper T cells
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B cells that have been stimulated by interleukin-2 develop into _____.
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plasma cells
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The role of cytotoxic T cells is the secretion of _____, which plays a role in the _____ immune response.
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perforin ... cell-mediated
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Clonal selection is the division of _____ that have been stimulated by binding to an antigen, which results in the production of cloned _____.
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B cells ... plasma cells and memory cells
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Which of these cells is responsible for the rapidity of the secondary immune response?
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memory cells
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Which of these cells produce and secrete antibodies?
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plasma cells
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The genetic material of HIV consists of _____.
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single-stranded RNA
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Which of these binds to receptor molecules on the host cell membrane?
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A
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What is the function of reverse transcriptase?
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catalyzing the formation of DNA from a RNA template
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What is the source of a viral envelope?
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host cell membrane
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Which of these is reverse transcriptase?
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C
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Which of these is the viral genome?
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E
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Click Start to begin the animation. What enzyme is responsible for the process seen here?
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reverse transcriptase
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Double-stranded viral DNA is incorporated into a host cell as a _____.
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provirus
