1. Which one of the following is NOT associated with type IV hypersensitivity reaction? Select one: a. plays a crucial role in our body's ability to fight various intracellular pathogens b. Involves CD8+Tcells, CD4 TH1 cells, macrophages activation c. one of the mechanisms that causes tissue injury and disease in response to antigens d. antibody-mediated response e. Involves cytokine-mediated inflammation in tissue f. takes several days to develop

1. Which one of the following is NOT associated with type IV hypersensitivity reaction? Select one: a. plays a crucial role in our body's ability to fight various intracellular pathogens b. Involves CD8+Tcells, CD4 TH1 cells, macrophages activation c. one of the mechanisms that causes tissue injury and disease in response to antigens d. antibody-mediated response e. Involves cytokine-mediated inflammation in tissue f. takes several days to develop

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter34: Immunity

Section: Chapter Questions

Problem 7SA

See similar textbooks

Similar questions

Match the hypersensitivity to the description. Туре 1 [ Choose| [ Choose] Memory T helper cells release cytokines that recruit and activate macrophages. Antibodies bound to antigens that cause mast cell and PMN degranulation. Туре 2 against cell surface antigens, such as in blood transfusions. IgE mediated and can manifest as eczema or asthma. Туpe 3 [ Choose ] Туpe 4 [ Choose ]
production e. basis of secondary allergy immune response f. nonprotective immune response CRITICAL THINKING New research suggests a link between some microbes that normally live in the body and seemingly unrelated major illnesses. The gum disease called periodontitis itself is not life-threatening, for instance, but it is a fairly good predictor for heart attacks. Bacteria that cause gum disease can trigger inflammation. Thinking back to your reading in Chapter 7, how do you suppose that this response also may be harmful to the heart? 1.
T cells andB cells. Put a check () mark in the table spaces below if the characteristic indicates the lymphocyte type. Put a cross (*) mark if III. otherwise. Characteristics T cell В сell Originates in the bone marrow May give rise to plasma cells Immunocompetence happens in bone marrow May give rise to memory cells Include regulatory, helper, and cytotoxic cells Responsible in directly attacking virus-infected cells Produces antibodies Effective against extracellular pathogens Immunocompetence happens in thymus gland Effective against intracellular pathogens Holds a surface meceptor capable of recognizing a specific antigen
Take-home assignment: Please name the type of hypersensitivity AND describe the cause, immune agent involved, symptoms, and treatment strategies. ADCC Allergen FceR Immune complex for IgE Sensitized T cell Allergen- specific IgE FéeR Complement activation cytotoxic Cytokine Surface cell Target antigen cell Complement CA activation Neutrophil Degranulation CAlergy) Tissue Immune complex damage Activated macrophage A В
Match the terms to their most approriate description. Select the INCORRECT match. a. Subunit vaccine / Part of a pathogen rather than the complete cell or virus b. Toxoid / Antigenic but non-toxic derivative of a toxin c. Perforin / Molecule that is part of the complement cascade d. Antitoxin / Neutralizing antibodies e. Superantigen / Bacterial exotoxin that activates a high percentage of T cells
. In a table give three differences between antigen and antibodies Explain the structure of the antibody molecule C. Discuss the differences between humoral and cell mediated immunity in terms of chemicals and cells involved in each process as they tackle pathogens
. In a table give three differences between antigen and antibodies Explain the structure of the antibody molecule Discuss the differences between humoral and cell mediated immunity in terms of chemicals and cells involved in each process as they tackle pathogens.
Match the antibody isotype with its functional characteristics. Highly effective at activating complement, too large to get to infected tissues Crosses cells, including the placenta, neutralizes toxins Dimeric form crosses the intestinal epithelia using PlgR Crosslinking on the surface of the mast cell leads to degranulation and release of histamine Although the exact function of this isotype is unknown, we know it does NOT fix complement ✓Choose... IgD IgM IgG IgA IgE Choose...
Place each events number listed below on the correct part of the “stages ofillness” graph (picture attached) to demonstrate the relationship between your body’s immuneresponse and your symptoms. Event Numbers: 1. The B cell clones itself into many plasma cells that are producing tons ofantibodies specific to the antigen. Memory B cells form.2. Plasma cells stop producing antibodies and memory B cells remain, ready foranother exposure to the antigens3. Antibody titre begins to decline4. The helper T-cell docks with a B cell shows the antigen to the B cell5. The antigen is engulfed by a macrophage and is present to a helper T cell
Write TRUE is the statement is True, otherwise write FALSE and explain why the statement is False. The complement system involves a set of genes that distinguish foreign cells from body cells. The alternative complement activation pathway involves the cleavage of C5 to form C9. The type of interferon present late in an infection is gamma interferon. Interferons cause muscle aches, chills, and fever. Toll-like receptors act to cause phagocytic chemotaxis. Lymphocytes are large agranulocytes. Opsonization occurs when a phagocyte’s pseudopods surround a microbe and fuse to form a sac. Defensins are antimicrobial peptides of the first line of defense.
Match the term with its description. interferon response apoptosis extravasation respiratory burst acute-phase response Drag answer here. Drag answer here Drag answer here Drag answer here Drag answer here temporary rise in oxygen consumption and toxic oxygen species production a notable rise or reduction of plasma proteins in response to IL-6 cellular suicide characterized by DNA fragmentation stimulates inhibition of viral replication migration of neutrophils into inflamed tissues
Match the term with its correct description. selection for thymocytes which recognize self MHC molecules elimination of thymocytes which recognize self continued alpha chain rearrangement until a functional TCR is generated process by which autoreactive thymocytes are eliminated in the thymus activation of a T-cell only if the appropriate MHC molecule presents an antigenic peptide ✓Choose... Apoptosis MHC restriction Positive selection Negative selection T-cell receptor editing Choose...