Homework Answers
tissue resident macrophages are an importantaspect of the metastatic niche by inducing local immunosuppression and thereby help circumvent CI. Beyond T cells and macrophages, NK cells also play a prominent role in the metastaticniche.
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37. Which of the following cells are thought to be MOST important in the control of...
Over years, a virus-infected cell slowly transformed into a cancerous cell exposing (due to mutations) changed...
Over years, a virus-infected cell slowly transformed into a cancerous cell exposing (due to mutations) changed antigens, i.e. proteins, on its cell surface. Which of the following cells of the immune system are most likely to recognize and attack this transformed cell? A) tissue macrophages B) neutrophils C) natural killer (NK) cells D) cytotoxic T cells E) plasma cells
Which cells of the immune system provide defense for the host against circulating tumor cells? a. Cytotoxic T (Tc) and H...
Which cells of the immune system provide defense for the host against circulating tumor cells? a. Cytotoxic T (Tc) and Helper T l (Th1) lymphocytes b. Neutrophils c. Macrophages and natural killer cells d. B-lymphocytes
Which of the following types of cells stimulates other immune cells to attack and destroy foreign...
Which of the following types of cells stimulates other immune cells to attack and destroy foreign agents? A. Cytotoxic T cells B. Natural killer cells C. Plasma cells D. Helper T cells
Which one of the following are incorrectly paired? A. interferons – virus-infected cells B. immunoglobulins –...
Which one of the following are incorrectly paired? A. interferons – virus-infected cells B. immunoglobulins – B cells C. class I MHC molecule – CD4 D. perforins – cytotoxic T cells E. perforins - natural killer cells an explanation would be appreciated! thanks!
22. Most new diseases in humans come from a. transmission from other species b. mutation of previ...
22. Most new diseases in humans come from a. transmission from other species b. mutation of previously harmless organisms. c. development of antibiotic resistance d. transmission from the environment 23 Which of the following cell types locate and kill microbes by engulfing and eating them? a. b. c. d. Macrophages Natural killer cells B cells T cells 24. Inflammation is an important part of the immune response, because it a. promotes the release of interferon b. represents a major proliferation...
e. intact mucus membranes. 47. Which of the following is associated with specific immune responses? a....
e. intact mucus membranes. 47. Which of the following is associated with specific immune responses? a. skin b. T cells c. macrophages d. complement proteins e. tears 48. Which group of proteins is used to "flag" microbes for destruction by macrophages? a. collagen b. interleukins c. complement d. cytokines e. enzymes 49. The human immunodeficiency virus (HIV) primarily destroys which cells? a, B b. Mast c. NK d. helper T and macrophages e. suppressor T 50. Antibodies are created by...
Which of the following types of cells are most similar in function to cytotoxic T-cells?
Which of the following types of cells are most similar in function to cytotoxic T-cells?
Question 8 (2 points) Cytotoxic T cells target a) antigens and antibodies. b) bacterial cells and...
Question 8 (2 points) Cytotoxic T cells target a) antigens and antibodies. b) bacterial cells and fungal cells. c) B cells and macrophages. O d) cancer cells and virally infected cells. e) skin cells and blood cells. Question 9 (2 points) In an allograft, the tissue donor is a) a monozygotic twin. b) a dizygotic twin. c) a non-relative. d) the recipient. e) a member of a different species.
CD4 and CD8 are: Select one: O a Molecules present on the surface of T cells...
CD4 and CD8 are: Select one: O a Molecules present on the surface of T cells that enhance interaction with antigen presenting cells O b. Molecules present on T cells that provide co-stimulation for B cells @c. Molecules secreted by antigen-presenting cells d. Molecules present on the surface of natural killer (NK) cells e. Molecules on the surface of antigen-presenting cells that inhibit NK cell activation
A) lymph follicles lymph nodes C) lacteals D) lymphatics 4) An advantage to adaptive immunity is...
A) lymph follicles lymph nodes C) lacteals D) lymphatics 4) An advantage to adaptive immunity is (A) its memory cells that provide quicker, larger and more efficient immune response upon second and subsequent exposure to an antigen B) its need for several cells to be activated over several days on first exposure C) the ability of its individual cells to respond to many different pathogens D) the use of antibodies that cause cell lysis and kill invading cells 5) A...
22. Most new diseases in humans come from a. transmission from other species b. mutation of previously harmless organisms. c. development of antibiotic resistance d. transmission from the environment 23 Which of the following cell types locate and kill microbes by engulfing and eating them? a. b. c. d. Macrophages Natural killer cells B cells T cells 24. Inflammation is an important part of the immune response, because it a. promotes the release of interferon b. represents a major proliferation...
e. intact mucus membranes. 47. Which of the following is associated with specific immune responses? a. skin b. T cells c. macrophages d. complement proteins e. tears 48. Which group of proteins is used to "flag" microbes for destruction by macrophages? a. collagen b. interleukins c. complement d. cytokines e. enzymes 49. The human immunodeficiency virus (HIV) primarily destroys which cells? a, B b. Mast c. NK d. helper T and macrophages e. suppressor T 50. Antibodies are created by...
Question 8 (2 points) Cytotoxic T cells target a) antigens and antibodies. b) bacterial cells and fungal cells. c) B cells and macrophages. O d) cancer cells and virally infected cells. e) skin cells and blood cells. Question 9 (2 points) In an allograft, the tissue donor is a) a monozygotic twin. b) a dizygotic twin. c) a non-relative. d) the recipient. e) a member of a different species.
CD4 and CD8 are: Select one: O a Molecules present on the surface of T cells that enhance interaction with antigen presenting cells O b. Molecules present on T cells that provide co-stimulation for B cells @c. Molecules secreted by antigen-presenting cells d. Molecules present on the surface of natural killer (NK) cells e. Molecules on the surface of antigen-presenting cells that inhibit NK cell activation
A) lymph follicles lymph nodes C) lacteals D) lymphatics 4) An advantage to adaptive immunity is (A) its memory cells that provide quicker, larger and more efficient immune response upon second and subsequent exposure to an antigen B) its need for several cells to be activated over several days on first exposure C) the ability of its individual cells to respond to many different pathogens D) the use of antibodies that cause cell lysis and kill invading cells 5) A...
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