Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Chapter 16, Problem 8R
Summary Introduction
To review: The labels of the phagocytosis - margination, diapedesis, adherence and phagolysosome formation.
Introduction:
The immune system of the vertebrates gives protection against the infectious foreign substances or pathogenic organisms. It is a complex biological reaction which involves in the specific and nonspecific defense against the infectious agents. The pathogenic damages to the defense cells indicate the sign of inflammation. After inflammation, the phagocytic cells are initiated to destroy the invading microbes.
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List and describe the 6 stages of phagocytosis.
Explain why attempts at phagocytosis are not always successful; cite factors that increase the likelihood of success.
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Chapter 16 Solutions
Microbiology: An Introduction
Ch. 16 - Identify at least one physical and one chemical...Ch. 16 - Define inflammation, and list its characteristics.Ch. 16 - What are interferons? Discuss their roles in...Ch. 16 - How can the complement system cause endotoxic...Ch. 16 - Patients with X-linked chronic granulomatous...Ch. 16 - Prob. 6RCh. 16 - Give several examples of how microbes evade the...Ch. 16 - Prob. 8RCh. 16 - Are the following involved in innate or adaptive...Ch. 16 - These agranulocytes are not phagocytic until they...
Ch. 16 - Prob. 1MCQCh. 16 - Prob. 2MCQCh. 16 - If the following are placed in the order of...Ch. 16 - Prob. 4MCQCh. 16 - A human host can prevent a pathogen from getting...Ch. 16 - Prob. 6MCQCh. 16 - In 1884. Elie Metchnikoff observed blood cells...Ch. 16 - Prob. 8MCQCh. 16 - Prob. 9MCQCh. 16 - Prob. 10MCQCh. 16 - Prob. 1ACh. 16 - Prob. 2ACh. 16 - Prob. 3ACh. 16 - The list below identifies a virulence factor for a...Ch. 16 - People with Rhinovirus infections of the nose and...Ch. 16 - Prob. 2CAECh. 16 - Leukocyte adherence deficiency (LAD) is an...Ch. 16 - The neutrophils of individuals with Chdiak-Higashi...Ch. 16 - Consider the following. a. In laboratory...
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- Define phagocytearrow_forwardDescribe how microfilaments and microtubules areinvolved in the phagocytosis and destruction of apathogen by a macrophage.arrow_forwardExtravasation has two phases: margination and diapedesis. Describe what happens during these phases in inflammation. In your description include the role of specific adhesion molecules for extravasation.arrow_forward
- Phagocytes have been described as “bloodhounds” searching for a “scent” as they brows through the tissues of the body. The scent they usually seek is chemotactic factor, a peptide released by bacterial cells. Does it strike you as unusual that bacterial cells would release a substance to attract the “bloodhound” that will eventually lead to the bacterial cell’s demise? Explain.arrow_forwardWhich of the following statements is false regarding phagocytosis? It can ingest large particles. It is mediated by clathrin at the plasma membrane. All of the answers are true. It is used by macrophages and neutrophils to ingest bacteria. It is used by amoebae to ingest food.arrow_forwardWhat defects in the phagocyte might cause lack ofphagocytosis?arrow_forward
- Describe the interaction between a phagocyte and pathogen that triggers phagocytosisarrow_forwardDuring phagocytosis, the pseudopodia (false feet) bring foreign entity into the cell to digest, within the phagocyte is a where the foreign entities can be found.arrow_forwardDefine phagocytosis and identify which cells serve this function.arrow_forward
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