Brock Biology of Microorganisms, Books a la Carte Plus Mastering Microbiology with Pearson eText -- Access Card Package (15th Edition)
15th Edition
ISBN: 9780134603940
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 26.4, Problem 1CR
Leukocytes are differentiated white blood cells derived from either myeloid or lymphoid precursor cells. Cells of myeloid lineage include monocytes and granulocytes. Monocytes include macrophages and dendritic cells, specialized phagocytes that function as antigen-presenting cells (APCs) to initiate an adaptive immune response. Granulocytes include neutrophils, which are also phagocytes but not APCs, and mast cells, which are important inducers of the inflammatory response but may also cause allergic reactions. Lymphocytes include B and T cells, which facilitate adaptive immunity, and natural killer cells, which play a key role in destroying virus-infected and cancerous host cells.
What is the origin of the phagocytes and lymphocytes active in the immune response? Track the maturation of B cells and T cells.
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In addition to phagocytosis, neutrophils use a process called NETs. Which one of the following describes this process?
Group of answer choices
A. NETs is a neutrophil process that activates the complement system of proteins, which destroys pathogens.
B. A net-like structure of DNA, histones, lactoferrins, gelatinase, cathepsin G, and myeloperoxidase is secreted at pathogens. Together these chemicals destroy pathogens.
C. NETs works when neutrophils secrete major basic proteins onto pathogens, destroying the pathogens' cell membranes.
D. NETs are chemicals secreted by neutrophils that trigger the rapid maturation of lymphoid stem cells into lymphocytes.
These are cells which give rise to the lymphoid lineage of white blood cells or leukocytes- the ILCs, NK cells and the T and B lymphocytes.
_____________3. These are cells which rise to the myeloid lineage which comprise to the rest of the leukocytes, the erythrocytes, and the megakaryocytes that produce platelets important in blood clotting.
_____________4. This is the first line of defense which consists of a surface barrier and internal structures that employ physical and biochemical strategies to get rid of many microorganisms before they can invade body tissues.
_____________5. This even takes days or even weeks to become established and more specific to an invading pathogen.
_____________6. The collective and coordinated process performed by immune system upon the introduction of a foreign substance.
_____________7. The successful invasion of a pathogenic organism inside the body.
_____________8. This immune response involves the destruction of infected cells by cytotoxic T…
Match the following cell types with their correct definition. ____ Macrophage a. Granulocyte that attacks parasites. ____ NK cell b. Granulocyte that secretes inflammatory mediators. ____ Eosinophil c. Highly active phagocytic agranulocyte that acts as an antigen-presenting cell. ____ Dendritic cell d. Highly active phagocytic granulocyte. ____ Neutrophil e. Cell that is cytotoxic to cancerous cells and to cells infected with certain viruses. f. Cell found in lymphoid organs that has long processes and acts as an antigen-presenting cell ____ Basophil
Chapter 26 Solutions
Brock Biology of Microorganisms, Books a la Carte Plus Mastering Microbiology with Pearson eText -- Access Card Package (15th Edition)
Ch. 26.1 - What major class of immune cells mediates an...Ch. 26.1 - Prob. 2MQCh. 26.1 - Compare and contrast the major features of innate...Ch. 26.2 - Describe host tissue specificity for pathogens.Ch. 26.2 - Identify physical and chemical barriers to...Ch. 26.2 - What other factors may control the outcome of an...Ch. 26.2 - Identify at least four mechanisms by which a...Ch. 26.3 - Describe the circulation of a leukocyte from the...Ch. 26.3 - What soluble molecules determine whether a...Ch. 26.3 - Cells involved in innate and adaptive immunity...
Ch. 26.4 - How does the development of B, T, and NK cells...Ch. 26.4 - Distinguish between the primary lymphoid organs...Ch. 26.4 - Leukocytes are differentiated white blood cells...Ch. 26.5 - Although technically not part of the immune...Ch. 26.5 - Describe the mechanisms by which circulating...Ch. 26.5 - Pathogens may colonize host tissues when...Ch. 26.6 - Identify a PAMP shared by a group of...Ch. 26.6 - Outline the general features of a signal...Ch. 26.6 - Innate recognition of common pathogens occurs...Ch. 26.7 - Identify the mechanism used by phagocytes to...Ch. 26.7 - Describe several reasons why phagocytes are not...Ch. 26.7 - Phagocytosis is the engulfing of infectious...Ch. 26.8 - Prob. 1MQCh. 26.8 - Identify the major symptoms of localized...Ch. 26.8 - Fever and inflammation, characterized by pain,...Ch. 26.9 - In what ways does the classical pathway of...Ch. 26.9 - What is opsonization, and how does opsonization...Ch. 26.9 - Why are the mannose-binding lectin and alternative...Ch. 26.9 - The complement system is composed of soluble...Ch. 26.10 - Prob. 1MQCh. 26.10 - Prob. 2MQCh. 26.10 - Prob. 1CRCh. 26 - Prob. 1AQCh. 26 - Describe the potential problems that would arise...Ch. 26 - Prob. 3AQCh. 26 - Prob. 4AQ
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