Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 34, Problem 12WIO
Explain the difference between clonal deletion and clonal selection; a natural killer cell and a cytotoxic T cell; antibodies and antigens; cell-mediated and humoral immunity; an autoimmune disorder and an immunodeficiency.
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Explain the difference between clonal deletion and clonal selection;a natural killer cell and a cytotoxic T cell; antibodies and antigens;cell-mediated and humoral immunity; an autoimmune disorder andan immunodeficiency.
Major histocompatibility proteins (MHC) presented with an antigen:
are recognized by T lymphocytes
both may be expressed by any nucleated cell and are recognized by T lymphocytes
both may be expressed by any nucleated cell and are recognized by B lymphocytes
may be expressed by any nucleated cell
are recognized by B lymphocytes
Define cellular immunity and describe the process of activation and clonal selection of T cells.
Chapter 34 Solutions
Biology: Concepts and Investigations
Ch. 34.1 - Prob. 1MCCh. 34.1 - Prob. 2MCCh. 34.1 - Prob. 3MCCh. 34.1 - Prob. 4MCCh. 34.2 - List the categories of inn ate defenses.Ch. 34.2 - Describe the physical barriers to infection.Ch. 34.2 - How do white blood cells contribute to innate...Ch. 34.2 - Prob. 4MCCh. 34.2 - Prob. 5MCCh. 34.3 - Prob. 1MC
Ch. 34.3 - What are the two subdivisions of adaptive...Ch. 34.3 - Prob. 3MCCh. 34.3 - Prob. 4MCCh. 34.3 - Prob. 5MCCh. 34.3 - Prob. 6MCCh. 34.4 - Prob. 1MCCh. 34.4 - Prob. 2MCCh. 34.4 - Prob. 3MCCh. 34.5 - Prob. 1MCCh. 34.5 - Prob. 2MCCh. 34.5 - Prob. 3MCCh. 34.5 - Prob. 4MCCh. 34.6 - Prob. 1MCCh. 34.6 - Prob. 2MCCh. 34 - Prob. 1MCQCh. 34 - Histamine acts on the _____, causing redness and...Ch. 34 - Prob. 3MCQCh. 34 - The innate immune response is characterized by its...Ch. 34 - Prob. 5MCQCh. 34 - Prob. 6MCQCh. 34 - Why is the secondary immune response so much...Ch. 34 - Prob. 8MCQCh. 34 - Prob. 9MCQCh. 34 - Prob. 1WIOCh. 34 - Prob. 2WIOCh. 34 - Explain why a scraped knee increases the chance...Ch. 34 - Prob. 4WIOCh. 34 - Prob. 5WIOCh. 34 - Prob. 6WIOCh. 34 - Prob. 7WIOCh. 34 - Prob. 8WIOCh. 34 - Prob. 9WIOCh. 34 - Prob. 10WIOCh. 34 - Prob. 11WIOCh. 34 - Explain the difference between clonal deletion and...Ch. 34 - Prob. 1PITCh. 34 - Prob. 2PITCh. 34 - Circle the immune system components that a vaccine...Ch. 34 - How do lymph and lymph nodes fit into this concept...Ch. 34 - Where else might macrophages fit into this concept...
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- Define the key components that make up the innate immune system (e.g., macrophages, neutrophils, natural killer cells, and complement system), and describe how these elements protect against infection.arrow_forwardDescribe the specific roles of helper, regulatory, and cytotoxic T cells in normal cellular immunity.arrow_forwardThe lymphatic system includes areas of high concentrations of APCs, T and B cells. has a pumping mechanism to move fluid. is very impermeable to extracellular fluid. collects fluid from around the brain and spinal cord. is the site of B and T cell clonal deletion.arrow_forward
- Define antigen and describe its role in immunity (easy and simple)arrow_forwardAll of the following are true of antigen-presenting cells (APCs) EXCEPT: which option below is the answer? None of the other four answers (All are true statements about APCs) They can interact directly with lymphocytes They include macrophages and dendritic cells APCs by themselves cannot distinguish between different microbial antigens, remember them later, or respond specifically to them They are non-specific cells and they play no role in activating or triggering specific immune responsesarrow_forward■ Which of the following is considered an innate immunity. Production of antibodies via B lymphocytes Killing virally infected cells by cytotoxic T lymphocyte The protective action of lysozymes in tears and saliva [ All of the abovearrow_forward
- For the following mechanism that is thought to contribute to maternal–fetal tolerance, state whether you would consider it to be an example of T cell tolerization, control of responses by regulatory lymphocytes, immune deviation or immune privilege: a) When effector T cells are generated, Th2 responses dominate.arrow_forwardWhich of the following is NOT an example of non- specific (innate) resistance mechanisms interacting directly with specific acquired immunity mechanisms? Complement being activated by antigen- antibody binding Macrophages and dendritic cells presenting antigens to lymphocytes Antibodies binding to bacterial surface antigens, coating (opsonizing) the bacteria and enhancing their phagocytosis by leukocytes None of the other four answers (All are examples of interaction between innate and acquired resistance) Antibody-dependent cell-mediated cytotoxicityarrow_forwardAcquired or adaptive immunity can be divided in to Natural Active, Natural Passive, Artificial Active, and Artificial Passive Immunity. Which types will lead to long lasting immune protection? Which will provide short term protection?arrow_forward
- Describe how T cells are activated during the development of a specific immune response. e.i. After vaccinationarrow_forwardMatch the immunity concepts: __________ inflammation __________ antibody secretion __________ phagocyte __________ immunological memory __________ vaccination __________ allergy a. neutrophil b. plasma cell c. nonspecific response d. purposely causing memory cell production e. basis of secondary immune response f. nonprotective immune responsearrow_forwardWhat is the difference between innate immunity and adaptive immunity?arrow_forward
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