One of the following mismatches: Select one: CD4+ Cells/ T helper cells CD8+ cells/ MHC classII- bound antigens CD8+ cells/ Suppressor T cells Prothymocytes/ Thymus
Q: Match the term in Column A with its description in Column B.
A: Immunoglobulins also known as antibodies is a large Y shaped protein used by the immune system to…
Q: Match the cell type in column A with its description in column B.
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A: the correct answer is in next step.
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Q: All T cell types share the presence of: Select one: CD8 CD25 CD4 CD3
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Q: The high degree of polymorphism in MHC class I molecules that present antigens to CD8 T cells is…
A: MHC(major histocompatibility complex) is a group of genes that help the immune system recognize…
Q: Match the term in column A with its description in column B
A: The terms are correctly matched with the contents below
One of the following mismatches:
CD4+ Cells/ T helper cells
CD8+ cells/ MHC classII- bound antigens
CD8+ cells/ Suppressor T cells
Prothymocytes/ Thymus
Step by step
Solved in 3 steps with 1 images
- Which of the following statements is correct? B cells only recognize antigen presented on MHC class II Dendritic cells are the only cells that can present antigen via both MHC class I and MHC class II CD8 + T cells recognize antigen presented on MHC class I B cells can present antigen via MHC class II for T cells The B cell receptor is a membrane-bound antibody Isotype switch leads to the B cell's antibodies being able to recognize a new antigen The T cell receptor recognizes peptides bound to MHC Main function of CD8 + T cellsAccording to the direction of the arrow, place the images into the correct order to represent the activation of a T cell. TM TC TH or 1 TH TM TC IC TH TM Memory T cells Effector cells Costimulation protein MHC protein APC Antigen 2 TC or TH APC TC or TH TH TC МНС-1 protein МНС-+ protein APC Enemy cell 4 or Next> 50 of 83 < Prev 53Which of the following statements is TRUE about NK cells? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b C d NK cells mediate the rejection of MHCa bone marrow transplants into MHCª x MHCb F1 mice NK cells mediate the rejection of MHCa x MHC F1 bone marrow transplants into MHCa mice Detection of type I IFN (IFNa or IFNB) by NK cells decreases their cytotoxic capacity Down-regulation of MHC I molecules on target cells decreases NK cytotoxicity
- The following events elicit an antibody response to a T-dependent antigen (Ag). Put them in order and indicate which one would happen third (of the five answers as shown, not necessarily number 3 on a lecture slide or text diagram). O Ag-presenting cell displays Ag fragments next to self (MHC) molecule on its surface Helper T cell (TH) activates an appropriate B cell Helper T cell (TH) specific for the Ag binds to MHC-Ag complex B cell differentiates into a plasma cell; secretes antibodies specific for the Ag Ag-presenting cell phagocytizes Ag-carrying microbeWhich of the following statements are NOT TRUE about Antigen Presenting Cells (APCs)? (Select all that apply) An APC can become activated from antigen binding as well as MHC binding APCs can carry mutliple MHCs Antigen presenting is due to APC activation Adaptive, innate, and non-immune cells can be APCs APCs travel to the sites of resident macrophages to recruit effector immune cells An APC that binds via their expressed MHC II will be killedWrite T if the statement is correct; write F if the statement is not correct. Antigen fragments that bind to MHC class I molecules are typically in endosomes. " " TAP1 and TAP2 are present on the plasma membrane of APCs. " " Proteasomes process antigens within the endoplasmic reticulum. " " Newly synthesized MHC class I molecules can be found within endosomes. " " Newly synthesized MHC class I α chains assemble in the ER with calnexin. " "
- Write T if the statement is correct; write F if the statement is not correct. Interferons enhance antigen presentation. " " Peptides that bind to MHC class II molecules are longer than those that bind MHC class I molecules. " " MHC molecules that lack a bound peptide is unstable. " " MHC class I:peptide:TCRcomplexes and MHC class II:peptide:TCR complex shows very similar orientation. " " The Golgi apparatus is part of the endomembrane system. " "The cytokine that activates macrophages, inhibits viral replication, and increases MHC Class I expression is interferon. True FalseWhich two events are required to activate a cytotoxic T cell? There is more than one answer. O Class II MHC molecules present extracellular antigen for binding on a complementary cytotoxic T cell receptor. O IL-4 is released by a TH1 cell to be bound by a cytotoxic T cell. O Class I MHC molecules presents intracellular antigen for binding on a complementary cytotoxic T cell receptor O IL-2 is released by a TH1 cell to be bound by a cytotoxic T cell.
- The diagram shows a pathogen (in red) that is present in different cellular compartments of each of the cell types shown. In each case, a specific T cell subset will recognize peptides of that pathogen presented on MHC molecules on the surface of the cell, and will execute its effector function. From the list below, match the appropriate T cell effector response to the cell type and location of the pathogen. CD4 T cell killing of target cell CD8 T cell killing of target cell CD4 T cell activation of target cell’s antibody production CD8 T cell activation of target cell’s antibody production CD4 T cell activation of target cell’s ability to kill intracellular pathogen CD8 T cell activation of target cell’s ability to kill intracellular pathogenWhich of the following statements is NOT correct? Group of answer choices -Natural killer cells are cytolytic lymphocytes that mediate ADCC -Neutrophils carry out phagocytosis of C3b-tagged particles -Macrophages carry out phagocytosis of C3b-tagged particles -Mast cells produce granules containing the cytotoxin perforin -B lymphocytes express a receptor for complement proteinsClassify the following images into the type of defense it represents. Interleukin Other cytokines Macrophage, B cell, or other antigen-presenting cell Clonal selection of B cells Helper T (T4) cell Macrophage- activating factor Other cytokines Macrophage activity Leukocyte chemotaxis Inflammation Interleukin Other cytokines Cellular Immunity Humoral Immunity Nonspecific Defense Clonal selection of cytotoxic T cells Next> 51 of 83 Prev
