Homework Answers
Correct answer is B. Extracellular, intracellular
Explanation:
B cells targets extracellular pathogens.
Cytotoxic T cells targets cells with intracellular pathogens.
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13 antigens, while cytotoxic T cells 13) The function of a B cell is to generate...
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.
How does activation by T-independent antigens differ from this figure? Extracellular antigens B cell receptors Antigen...
How does activation by T-independent antigens differ
from this figure?
Extracellular antigens B cell receptors Antigen fragments MHC class II with antigen displayed on surface **Cytokines Plasma cell Antibodies T cell B cell B cell 1 APC receptors 2 Antigen is 3 Antigen fragments are T helper cell recognize and phagocytized and displayed on the B cell secretes cytokines, attach to antigen. digested (see surface, attracting a activating a B cell. Figure 17.12). matching T helper cell. Figure 17.5 Activation...
29. T-cell independent antigens can a. stimulate B cells to multiply and produce antibodies b. induce...
29. T-cell independent antigens can a. stimulate B cells to multiply and produce antibodies b. induce Te cells to function c. restrict antibody formation activate macrophages activate Th cells 30. Mutation of DNA that produces an altered ribosome is an example of what type of bacterial resistance mechanism? a. alteration of a metabolic pathway b. alteration of an enzyme c. development of enzymes d. alteration of target & d 31. Which one of the following is not an attribute of...
Name: 43. Antigens can be found on... (a) flagella (b) cell walls (c) human cells (d)...
Name: 43. Antigens can be found on... (a) flagella (b) cell walls (c) human cells (d) all of the above 40. What is the site where stem cells develop and mature into T lymphocytes in humans? (a) spice (b) thymus (c) blood (d) bone marrow 47. Antigen presentation with MHC I molecules sensitizes which type of T cell? (a) cytotoxic T cells (b) helper T cells (c) plasma cells (d) all of the above 48. How does the Tc cell...
13 which of the following best describes protection from antigens due to passive immunity? A: Immunization...
13 which of the following best describes protection from antigens due to passive immunity? A: Immunization leads to the activation of B-cell protection. B: After primary exposure to an antigens, memory T cells remain to respond to a secondary exposure. C: A mother passes antibodies to her child through breastmilk d: Exposure to virus leads to the production of antibodies that can bind to the virus.
A) T cells B) B cells 18. Helper T cells recognize. 19. These cells recognize cells...
A) T cells B) B cells 18. Helper T cells recognize. 19. These cells recognize cells that contain foreign antigens (virally infected cells, tumor cells, foreign tissue grafts). 20. Cytotoxic T cells recognize. 21. TAP transporter transports peptides that are loaded onto. 22. These cells recognize whole protein antigens C) MHC I molecules D) MHC II molecules
1.One group of immune deficiency diseases is caused by an inability of CD8 effector T cells...
1.One group of immune deficiency diseases is caused by an inability of CD8 effector T cells to kill virus-infected target cells, due to defects in cytotoxic vesicle exocytosis. Because of the inflammatory response that accompanies a normal virus infection, together with the prolongation of this response due to the inability to control the infection, patients with these disorders suffer from tissue damage caused by the infiltration of effector CD8 cells and activated macrophages into multiple organs. In addition, a subset...
Match each type of immune system cell to its function or description. (Use each description once)....
Match each type of immune system cell to its function or description. (Use each description once). Helper T-cell Detects pathogens and releases chemokines as part of the inflammatory response Participates in activation of B-cells if it has receptors for the same antigens Has receptors that are specific to particular antigen structures and releases antibodies as part of the humoral response Releases histamine as part of the inflammatory response Secretes proteins that cause infected cells to undergo apoptosis White blood cell...
Which of the following activates cytotoxic T cells as part of the acquired immune response against...
Which of the following activates cytotoxic T cells as part of the acquired immune response against virus infected cells? -Virus infected cell -Virus infected cell that presents a viral antigen on its surface -A virale infected cell that presents both a viral antigen and a MHC class 1 protein -A virale infected cell that presents both a viral antigen and a MHC class II protein Which of the following is a role of macrophages in a secondary lymph organ in...
Question 22 Which of the following is a way that Cytotoxic T cells can kill host...
Question 22 Which of the following is a way that Cytotoxic T cells can kill host cells? by secreting antibodies which inactivate the host cell by secreting granzymes which stimulate apoptosis by secreting interferons which degrade the host cell DNA by secreting tumor necrosis factor which stimulates apoptosis by secreting lysozyme which causes the host cell to lyse
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.
How does activation by T-independent antigens differ
from this figure?
Extracellular antigens B cell receptors Antigen fragments MHC class II with antigen displayed on surface **Cytokines Plasma cell Antibodies T cell B cell B cell 1 APC receptors 2 Antigen is 3 Antigen fragments are T helper cell recognize and phagocytized and displayed on the B cell secretes cytokines, attach to antigen. digested (see surface, attracting a activating a B cell. Figure 17.12). matching T helper cell. Figure 17.5 Activation...
29. T-cell independent antigens can a. stimulate B cells to multiply and produce antibodies b. induce Te cells to function c. restrict antibody formation activate macrophages activate Th cells 30. Mutation of DNA that produces an altered ribosome is an example of what type of bacterial resistance mechanism? a. alteration of a metabolic pathway b. alteration of an enzyme c. development of enzymes d. alteration of target & d 31. Which one of the following is not an attribute of...
Name: 43. Antigens can be found on... (a) flagella (b) cell walls (c) human cells (d) all of the above 40. What is the site where stem cells develop and mature into T lymphocytes in humans? (a) spice (b) thymus (c) blood (d) bone marrow 47. Antigen presentation with MHC I molecules sensitizes which type of T cell? (a) cytotoxic T cells (b) helper T cells (c) plasma cells (d) all of the above 48. How does the Tc cell...
13 which of the following best describes protection from antigens due to passive immunity? A: Immunization leads to the activation of B-cell protection. B: After primary exposure to an antigens, memory T cells remain to respond to a secondary exposure. C: A mother passes antibodies to her child through breastmilk d: Exposure to virus leads to the production of antibodies that can bind to the virus.
A) T cells B) B cells 18. Helper T cells recognize. 19. These cells recognize cells that contain foreign antigens (virally infected cells, tumor cells, foreign tissue grafts). 20. Cytotoxic T cells recognize. 21. TAP transporter transports peptides that are loaded onto. 22. These cells recognize whole protein antigens C) MHC I molecules D) MHC II molecules
Question 22 Which of the following is a way that Cytotoxic T cells can kill host cells? by secreting antibodies which inactivate the host cell by secreting granzymes which stimulate apoptosis by secreting interferons which degrade the host cell DNA by secreting tumor necrosis factor which stimulates apoptosis by secreting lysozyme which causes the host cell to lyse
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