Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Chapter 33.6, Problem 3CC
Summary Introduction
Lymphocytes are types of white blood cells (WBCs) and they include B cells, T cells, and natural killer cells. Lymphocytes play a crucial role in the immune system of the body. B-cell precursors are produced from the stem cells in the bone marrow. Subsets of B cells contain a unique function, they are involved in the immune mechanism and antibody production. B cells regulate antibody or humoral immune system. Toll-like receptors are present on the B-cells and they regulate activation of B-cells throughout the developmental stages of B cells. The subset of B-cells has a well-defined activation mechanism. B cells are activated by a specific antigen, which is required for their proliferation, differentiation, and maturation.
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Chapter 33 Solutions
Prescott's Microbiology
Ch. 33.2 - What does the term valence mean and how does an...Ch. 33.2 - Prob. 1CCCh. 33.2 - Prob. 2CCCh. 33.2 - Prob. 3CCCh. 33.3 - What distinguishes natural from artificial...Ch. 33.3 - What are ways that active immunity is different...Ch. 33.3 - Of the four types of acquired immunity, which do...Ch. 33.4 - On what types of cells are MHC class I molecules...Ch. 33.4 - Prob. 2MICh. 33.4 - Prob. 1CC
Ch. 33.4 - Prob. 2CCCh. 33.4 - Prob. 3CCCh. 33.5 - Prob. 1MICh. 33.5 - Prob. 1CCCh. 33.5 - Prob. 2CCCh. 33.5 - Prob. 3CCCh. 33.5 - Prob. 4CCCh. 33.5 - Prob. 5CCCh. 33.5 - Prob. 6CCCh. 33.6 - Prob. 1MICh. 33.6 - Prob. 1CCCh. 33.6 - Prob. 2CCCh. 33.6 - Prob. 3CCCh. 33.7 - Prob. 1MICh. 33.7 - Prob. 2MICh. 33.7 - Prob. 3MICh. 33.7 - Prob. 1CCCh. 33.7 - Prob. 2CCCh. 33.7 - Prob. 3CCCh. 33.7 - Prob. 4CCCh. 33.7 - Prob. 5CCCh. 33.7 - Prob. 6CCCh. 33.8 - What is the difference between a precipitation and...Ch. 33.8 - Prob. 1CCCh. 33.8 - Prob. 2CCCh. 33.8 - Prob. 3CCCh. 33.9 - Prob. 1CCCh. 33.9 - Prob. 2CCCh. 33.10 - Prob. 1MICh. 33.10 - Prob. 2MICh. 33.10 - Prob. 1.1CCCh. 33.10 - Prob. 1.2CCCh. 33.10 - Prob. 1.3CCCh. 33.10 - Prob. 1.4CCCh. 33.10 - What is an autoimmune disease and how might it...Ch. 33.10 - Prob. 2.2CCCh. 33.10 - Prob. 2.3CCCh. 33.10 - Prob. 2.4CCCh. 33 - Prob. 1RCCh. 33 - Prob. 2RCCh. 33 - Prob. 3RCCh. 33 - Prob. 4RCCh. 33 - Prob. 5RCCh. 33 - Prob. 1ALCh. 33 - Prob. 2ALCh. 33 - Prob. 3ALCh. 33 - Prob. 4ALCh. 33 - Prob. 5AL
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- b) Figure 14 shows a part of acquired immune response. Pathogen P Antigen fragments MHC Antigen гесeptor. CD4 Helper T cell Activated helper T cell Figure 14 i) Describe the above process. II) Why do O and P have different pathways for antigen processing although the same antigen is identified? iii) What are the effects on P when activated helper T cell releases Q7arrow_forwardIn what way does the T cell’s membrane receptors differ from the B cell’s membrane receptor? In other words, what will each bind to?arrow_forwardHow and why do B cells undergo a class switch from producing IgM antibodies to any of the other Ig isotypes?arrow_forward
- How can an extracellular bacterium and an intracellular virus independently be targeted by a particular T cell response? And what is the mechanism of antigen presentation?arrow_forwardA flu-infected cell has down-regulated its MHC class I expression. The lymphocytes below comes to the site and interacts with the cell. How does the downregulation of MHC class I affect these ability of lymphocytes to kill the infected cell? a) influenza-specific T cell b) NK cell c) herpes-specific T cell Indicate whether the possibility increases, decreases or is unchanged for each cell.arrow_forwardHow does a single MHC protein present many differentpeptides to T cells?arrow_forward
- T cells can differentiate into 5 different subsets of helper T cells. Answer the following questions for TH1 cells: A) In general, list three unique factors that differentiate the TH1 subset from the other subsets. B) For each of those factors identified in A, provide one specific example that applies to TH1 cells. C) What type of pathogens are targeted by the TH1 cells?arrow_forwardOutline the process of B-cell activation against a T-dependent antigen.arrow_forwardWhat is the activation signal for NK cells? How doesthis differ from the activity of T-cytotoxic lymphocytes?arrow_forward
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