Which are important in nonspecific immune defenses? a. interferons b. lymphocyte activation c. neutrophil activation d. secretion of antibodies from plasma cells e. a & c
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Which are important in nonspecific immune defenses?
a. interferons
b. lymphocyte activation
c. neutrophil activation
d. secretion of antibodies from plasma cells
e. a & c
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- . 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 antibodiesWhich is/are function(s) of the lymphatic system? a. Hemopoiesis b. Inspect lymph for pathogens c. Regulation of blood pressure d. Collect interstitial fluid and return it to the blood circulatory systemWhich characteristic is associated with passive artificial immunity?a. long-term protection duration b. requires several days to develop protection c. immediate protection d. creation of memory in response to antigen exposure
- Which is true of the innate immune response? a) Mucus can contain lysozyme and ampicillin b) Fe poisons potential pathogens c) Skin is dry and alkaline d) Fe limitation has a bacteriostatic effectHow do corticosteroids act to block inflammation? a. Blocking neutrophil migration b. Blocking mast cells degranulation c. Blocking macrophage activation d. Blocking the synthesis of arachidonic acidWhich best describes the term "immunological disorder"? a. An exaggerated or inadequate immune response. b. A disorder that destroys the immune system. c. Any genetic disease. d. A complete lack of immune function. e. Immune problems that cause disease but cannot be detected.
- Why is the secondary immune response so much stronger than theprimary response?a. Because high concentrations of antibodies are already presentb. Because the phagocytes present the antigens more rapidlyc. Because memory B cells can rapidly convert to plasma cellsd. Because protein synthesis occurs more quickly in memory cellsWhich 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.Which is the proper order of events in cell-mediated immunity? (1) Cloning of cytotoxic T cells and memory T cells(2) Antigen presented to T lymphocyte(3) Activation of T lymphocytes(4) Cytotoxic T cells attack target cells Select one: a. 3, 2, 4, 1 b. 1, 4, 2, 3 c. 2, 3, 4, 1 d. 2, 3, 1, 4 e. 1, 2, 3, 4,
- Which is/are important in innate immune responses?a. interferonsb. clonal inactivationc. lymphocyte activationd. secretion of antibodies from plasma cellse. class 1 MHC proteinsDescribe the difference between innate and acquired immunity. Then explain ONE reason why a person’s immune system could be negatively impacted. Explain how vaccines are used to teach the immune system.When we get sick we trust our immune system to protect us, but what happens when that system goes awry and ends up killing patients? Question: What is Cytokine Storm, and how does it work? What happens during the immuneresponse to the Corona virus, which results in a high number of deaths? Analyze and give a brief report.
