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3. Naïve T cells initially bind to antigen presenting cells by (T cell) binding to (APC)...
1 pts T cytotoxic cell activation involves: O antigen binding to antibody on B cells O...
1 pts T cytotoxic cell activation involves: O antigen binding to antibody on B cells O T cell receptor (TCR) binding to antigen displayed in MHC-II O T cell receptor (TCR) binding to antigen displayed in MHC- natural killer cells 1 pts Question 13 Question 11 1 pts Which of the following is found on the surface of T cells! O All of these O MHC-II O CD and TCR TCR O CD 1 pts Question 12 Question 10 1...
answer all the questions answering one question is not helpful 1. A helper T cell is...
answer all the questions answering one question is not helpful 1. A helper T cell is capable of helping another cell because it expresses a protein on its surface that binds to a different protein on the surface of the cell being helped. What are these proteins (on the T cell, and on the cell being helped)? CD28, and B7 TNF, and TNFR Class I MHC, and TCR CD40L, and CD40 CTLA-4, and B7 2. Helper T cells are restricted...
3 pts Question 12 What type(s) of MHC molecules are present on antigen-presenting cells? Neither MHC...
3 pts Question 12 What type(s) of MHC molecules are present on antigen-presenting cells? Neither MHC I nor MHC II O Both MHC I and MHC II MHC I only OM ll only Question 13 3 pts A B-cell may be activated by: A cytotoxic T-cell A natural killer T-cell Another B-cell A TFH cell
please answer questions 20-27 Costcell and antigen presenting cell interaction is A MHC clase-It restricted CMHC...
please answer questions 20-27
Costcell and antigen presenting cell interaction is A MHC clase-It restricted CMHC class I restricted B MHC class-It restricted D. T-suppressor restricted 21. Which of the following are professional antigen presenting cells? A. Langerhans cells Chasophils B T-suppressors D. epithelial cells 22. T-cell dependent antigens can trigger a response from B-cells without the cooperation with macrophages or T-helper cells. A True B. False 23. Erythroblastosis fetalis develops in which of the following situations? A.fourth pregnancy Rh+...
20. Defective function of which of the following proteins will result in failed antigen presentation to...
20. Defective function of which of the following proteins will result in failed antigen presentation to CD8 T cells? a. HLA-DM b. TAP c. Cathepsins d. CD1d 21.True or False: An antibody proteolytically cleaved by pepsin yields a fragment with higher avidity to the cognate antigen than an antibody cleaved by papain. a. True b. False 22.The structure recognized by an antibody (that is, the epitope) is the ________ and the regions of the antibody with significant sequence variation are...
B cell activation requires (select ALL that apply): O T cytotoxic cells O Tcell receptor (TCR)...
B cell activation requires (select ALL that apply): O T cytotoxic cells O Tcell receptor (TCR) binding to antigen displayed in MHC-|| O antigen binding to antibody on B cell surface T cell receptor (TCR) binding to antigen displayed in MHC-I Question 3 1 pts Which statement(s) about C proteins in the complement system is true (select ALL that apply): Cproteins are always active as they circulate through the body All of the C proteins are equally important for all...
Which antigen presenting cell is capable of presenting antigen and co-stimulation to a naive CD4 or...
Which antigen presenting cell is capable of presenting antigen and co-stimulation to a naive CD4 or CD8 T lymphocyte? A. B cell B. Macrophage C. Dendritic cell D. Macrophage or dendritic cell E. Macrophage, dendritic cell, or B cell
Which of the following statements about how B and T cells recognize antigen are true? Correct...
Which of the following statements about how B and T cells recognize antigen are true? Correct any false statements. a. B cells only recognize antigen presented by class I or class II MHC molecules. b. Both cell types can recognize extra-cellular antigen free-floating in solution. c. Both cell types recognize extracellular matrix-bound antigens. d. T cells only recognize antigen presented by class I or class II MHC molecules.
37. What is NOT correct about phagocytic, professional antigen-presenting cells? a. they produce a respiratory burst...
37. What is NOT correct about phagocytic, professional antigen-presenting cells? a. they produce a respiratory burst as soon as the phagosome is formed around the foreign particle b. They create toxic reactive oxygen species to immediately kill microorganisms c. They bind a foreign peptide antigen in the cleft between two chains of the MHC Class II d. e. molecule Have receptors for immunoglobulins and C3b all are correct
Question 13 3 pt: MHC I and MHC Il differ from each other in that: MHC...
Question 13 3 pt: MHC I and MHC Il differ from each other in that: MHC I, but not MHC II, is necessary for T cells to kill cells presenting endogenous antigen MHC I, but not MHC II, primarily present exogenous antigens to CD8+ T cells MHC I, but not MHC II, is necessary for T cells to activate B cells MHC II, but not MHC I, primarily present endogenous antigens to CD4+ T cells Question 14 3 pts In...
1 pts T cytotoxic cell activation involves: O antigen binding to antibody on B cells O T cell receptor (TCR) binding to antigen displayed in MHC-II O T cell receptor (TCR) binding to antigen displayed in MHC- natural killer cells 1 pts Question 13 Question 11 1 pts Which of the following is found on the surface of T cells! O All of these O MHC-II O CD and TCR TCR O CD 1 pts Question 12 Question 10 1...
3 pts Question 12 What type(s) of MHC molecules are present on antigen-presenting cells? Neither MHC I nor MHC II O Both MHC I and MHC II MHC I only OM ll only Question 13 3 pts A B-cell may be activated by: A cytotoxic T-cell A natural killer T-cell Another B-cell A TFH cell
please answer questions 20-27
Costcell and antigen presenting cell interaction is A MHC clase-It restricted CMHC class I restricted B MHC class-It restricted D. T-suppressor restricted 21. Which of the following are professional antigen presenting cells? A. Langerhans cells Chasophils B T-suppressors D. epithelial cells 22. T-cell dependent antigens can trigger a response from B-cells without the cooperation with macrophages or T-helper cells. A True B. False 23. Erythroblastosis fetalis develops in which of the following situations? A.fourth pregnancy Rh+...
B cell activation requires (select ALL that apply): O T cytotoxic cells O Tcell receptor (TCR) binding to antigen displayed in MHC-|| O antigen binding to antibody on B cell surface T cell receptor (TCR) binding to antigen displayed in MHC-I Question 3 1 pts Which statement(s) about C proteins in the complement system is true (select ALL that apply): Cproteins are always active as they circulate through the body All of the C proteins are equally important for all...
37. What is NOT correct about phagocytic, professional antigen-presenting cells? a. they produce a respiratory burst as soon as the phagosome is formed around the foreign particle b. They create toxic reactive oxygen species to immediately kill microorganisms c. They bind a foreign peptide antigen in the cleft between two chains of the MHC Class II d. e. molecule Have receptors for immunoglobulins and C3b all are correct
Question 13 3 pt: MHC I and MHC Il differ from each other in that: MHC I, but not MHC II, is necessary for T cells to kill cells presenting endogenous antigen MHC I, but not MHC II, primarily present exogenous antigens to CD8+ T cells MHC I, but not MHC II, is necessary for T cells to activate B cells MHC II, but not MHC I, primarily present endogenous antigens to CD4+ T cells Question 14 3 pts In...
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