All of the following cells directly incorporate antigens into their structures, EXCEPT: A). Antigen presenting cells. B). Helper T cells C). B cells D). Killer T cells
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Q: what are the functions of antigen presentation?
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Q: Which antibody class is the first produced during a primary response?
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Q: What is the difference between a T-cell-dependent and T-cell- independent response?
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Q: How might antibodies be used to activate B cells?
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Q: What is an antigen-presenting cell? By which mechanism do the “present” antigens?
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Q: If an antigen mutates, will the same lymphocytes recognize it?
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Q: What is the function of an antigen-presenting cell?
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Q: An epitope associates with which part of an antigen receptor?
A:
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Q: What are the different types of T cells, and what function does each have?
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Q: What are antigen-presenting cells?
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Q: What are the differences in the types of antigens recognized by antibodies and T cell receptors?
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Q: Describe the T cell response?
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Q: What is adaptive immunity ?
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Q: What are the functions of Helper T cell markers?
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Q: What are the functions of Cytotoxic T cell markers?
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Q: What is the purpose of T-cell secretion of cytokines?
A: Lymphocytes are immune cells present in the blood. There are two types of lymphocytes; B cells/ B…
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- Which of the following is NOT involved in antigen presentation to helper T Cells? a.) CD4 b.) Class I MHC c.) T Cell Receptors d.) Class II MHCSuperantigensa) are exceptionally large antigen molecules.b) cause a very large antibody response.c) elicit a response from a large number of T cells.d) attach non-specifically to B-cell receptors.e) assist in a protective immune response.Helper T cells: A) produce antibodies B) can act as memory cells C) initiate both the cell mediated response and the humoral response D) all of the above
- B cell-receptors differ from T cell-receptors in that ________. A) B cell-receptors are immunoglobulins similar to those that are secreted, whereas T cell-receptors are not immunoglobulins and are never secreted B) T cell-receptors are much smaller than B cell-receptors C) All of the choices reflect differences between B cell- and T cell-receptors. D) B cell-receptors are comprised of four polypeptides, whereas T cell-receptors are made up of two polypeptidesWhich of the following is NOT true of Innate Lymphoid Cells (ILCs)? A) Each ILC type responds to a different category of pathogens. b.)) ILCs are derived from the common lymphoid precursor. c. )) ILCs rearrange their antigen receptors in a similar way to T-cells. d. ))Each ILC type is distinguished by the cytokines that it produces. e. ))Development of each ILC type is driven by unique transcription factors.When an antigen complex is bound to a Class I MHC molecule, it can stimulate a A) B cell. B) plasma cell. C) helper T cell. D) cytotoxic T cell. E) Antigen presenting cell.
- Which of the following among A-D is not a characteristic of T cells? A) O Cytotoxic T cells can kill vius-infected cells. 111 B) O Cytotoxic T cells respond to antigen bound to MHC class I molecules, 0 O Certain T helper cells bind to and activate macrophages and dendritic cells. D) O Certain T helper cells activate B cells for antibody production. E) O All the above are characteristics of T cells.Which of the following lists contains cells that are typically considered to be associated with the innate immune response? Question 14 options: A) neutrophils, macrophages, T cells B) neutrophils, macrophages, NK cells C) B cells, T cells, and NK cells D) basophils, T cells, mast cellsWhat is the first step in the antigen-antibody interaction? A.) opsonization B.) epitope production C.) neutralization D.) phagocytosis E.) agglutination
- Activated helper T Cells participate in which of the following processes? a.) Differentiation of memory B cells b.) Activation of cytotoxic T Cells c.) Facilitation of macrophage phagocytosis d.) All of aboveAn allergic reaction is an example of: a) the immune system not working at all. b) a deficiency of B cell responses. c) the immune system doing its job too well. d) an overabundance of T cell responses.7. The major innate cell type to eliminate viral-infected cells are A). NK cells B). Neutrophils C). Macrophages D). Dendritic cells E). Tc cells. 8. Antibodies in the serum were secreted from A). TH cells B). Plasma cells C). Antigen presenting cells D). Naïve B cells E). Mature B cells 9. Which can initiate anti-viral responses? A). Tal cytokines released by epithelial cells. B). TH1 cytokines released by B cells. C). TH2 cytokines released by NK cells. D). TH17 cytokines released by basophils. E). All of the above.