Domanda del libro di testo
Indicate which statements are true. Correct all false statements by changing the underlined words.
__________ Phagocytes exhibit chemotaxis toward a pathogen.
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Ch. 15 - Innate Immunity
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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TOC.tableOfContents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Non è quello che usi tu?Cambia libro di testo
Capitolo 15, Problema 5
Which of the complement fragments is inflammatory?
a. C3a
b. C4a
c. C5a
d. All of the above
Guida verificata passo dopo passo1
Understand that the complement system is part of the immune response and involves proteins that, when activated, split into fragments with different functions.
Recognize that certain complement fragments, specifically C3a, C4a, and C5a, are known as anaphylatoxins because they promote inflammation by increasing vascular permeability and attracting immune cells.
Recall that among these, C5a is considered the most potent inflammatory mediator, but C3a and C4a also contribute to inflammation.
Since the question asks which fragment is inflammatory, consider whether the answer includes one or all of these fragments based on their known roles.
Conclude that because C3a, C4a, and C5a all have inflammatory properties, the correct choice would be the option that includes all of them.
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Complement System
The complement system is a group of proteins in the blood that helps the immune system clear pathogens. It is activated through a cascade, producing fragments that have various roles such as opsonization, cell lysis, and inflammation.
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Review of the Complement System
Anaphylatoxins (C3a, C4a, C5a)
Anaphylatoxins are small complement fragments (C3a, C4a, C5a) generated during complement activation. They promote inflammation by inducing smooth muscle contraction, increasing vascular permeability, and attracting immune cells to infection sites.
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04:583) Inflammatory Response
Role of C5a in Inflammation
C5a is the most potent anaphylatoxin, strongly attracting neutrophils and other immune cells to infection sites. It enhances inflammation by stimulating the release of histamine and other mediators, making it a key player in the inflammatory response.
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03:09Chronic Inflammation
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