HUMAN PHYSIOLOGY CONNECT ACCESS CARD
15th Edition
ISBN: 9781260865462
Author: Fox
Publisher: MCG CUSTOM
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Chapter 15, Problem 7RA
Summary Introduction
To determine:
Characteristics of complement proteins C3a and C5a.
Introduction:
A complement is a vital part of the immune system which increases the capability of immunoglobulins and phagocytic cells to remove the microbes from the organism. The complement system has proteins which are synthesized by the hepatocytes and circulate in the blood in an inactive form.
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Chapter 15 Solutions
HUMAN PHYSIOLOGY CONNECT ACCESS CARD
Ch. 15 - List the phagocytic cells found in blood and...Ch. 15 - Prob. 1bCPCh. 15 - Prob. 2aCPCh. 15 - Prob. 2bCPCh. 15 - Prob. 2cCPCh. 15 - Prob. 3CPCh. 15 - Prob. 4aCPCh. 15 - Prob. 4bCPCh. 15 - Prob. 5CPCh. 15 - Prob. 6aCP
Ch. 15 - Prob. 6bCPCh. 15 - Define the term histocompatibility antigens and...Ch. 15 - Prob. 7bCPCh. 15 - Prob. 8aCPCh. 15 - Prob. 8bCPCh. 15 - Prob. 8cCPCh. 15 - Prob. 8dCPCh. 15 - Prob. 9CPCh. 15 - Prob. 10aCPCh. 15 - Prob. 10bCPCh. 15 - Prob. 10cCPCh. 15 - Prob. 11CPCh. 15 - Prob. 12aCPCh. 15 - Prob. 12bCPCh. 15 - Which of these offers a nonspecific defense...Ch. 15 - Prob. 2RACh. 15 - Prob. 3RACh. 15 - Prob. 4RACh. 15 - Prob. 5RACh. 15 - Prob. 6RACh. 15 - Prob. 7RACh. 15 - Mast cell secretion during an immediate...Ch. 15 - Prob. 9RACh. 15 - Which of these cell types aids the activation of T...Ch. 15 - Prob. 11RACh. 15 - Delayed hypersensitivity is mediated by...Ch. 15 - Active immunity may be produced by...Ch. 15 - Which of these statements about class-2 MHC...Ch. 15 - Prob. 15RACh. 15 - Prob. 16RACh. 15 - Prob. 17RACh. 15 - Which of these statements about gamma interferon...Ch. 15 - Explain how antibodies help to destroy invading...Ch. 15 - Identify the different types of interferons and...Ch. 15 - Distinguish between the class-I and class-2 MHC...Ch. 15 - Prob. 22RACh. 15 - Prob. 23RACh. 15 - Describe how plasma cells attack antigens and how...Ch. 15 - Explain how tolerance to self-antigens may be...Ch. 15 - Use the clonal selection theory to explain how...Ch. 15 - Prob. 27RACh. 15 - Distinguish between immediate and delayed...Ch. 15 - Describe regulatory T lymphocytes and their...Ch. 15 - Prob. 30RACh. 15 - The specific T lymphocyte immune response is...Ch. 15 - Lizards are cold-blooded; their body temperature...Ch. 15 - Why are antibodies composed of different chains,...Ch. 15 - As a scientist trying to cure allergy, you are...Ch. 15 - The part of the placenta that invades the mother's...Ch. 15 - Describe the antigen-dependent and...Ch. 15 - People with peanut allergies could go into...Ch. 15 - Identify some immunologically privileged sites in...Ch. 15 - Use figure 15.6 to answer the following questions...Ch. 15 - Use figure 15.6 to answer the following questions...Ch. 15 - Prob. 41RACh. 15 - Prob. 42RA
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- Which of the following does not describe the outcome of complement activation? a. chemotaxis b. opsonization c. vasoconstriction d. proteolysis e. membrane permeabilization.arrow_forwardTwo of the major actions of complement are a. increased inflammatory response and cytolysis. b. recognition and destruction of a specific antigen and cytolysis. c. production of antibody and increased inflammatory response. d. release of cytokines to increase the immune response and production of antibody.arrow_forwardWhich of the following leads to swelling seen in an inflammation? a. Vasodilation b. Complement activation c. Phagocytosis by macrophages d. Increased capillary permeabilityarrow_forward
- A(n) _____ is an inactive form of an enzyme that frequently participates in a cascade of enzymatic reactions during complement activation. a. regulator of complement activation b. convertase c. complement control protein module d. zymogen e. opsonin.arrow_forwardWhich of the following is not a consequence of activation of the complement system? Select one: a. Lysis of bacteria and other foreign cells b. Repair of damaged tissue c. Increased phagocytosis by phagocytic cells (opsonization) d. Attraction and activation of leukocytesarrow_forwardWhich of the following is not a function of antibodies? Select one: a. They neutralize pathogens by masking the pathogen surface. b. They act as molecular adaptors that bridge together pathogen and phagocyte surfaces. c. They exert toxic effects directly. d. They act as opsonins that mediate phagocytosis. e. They activate complement fixation.arrow_forward
- Which of these statements about gamma interferon is false? a. It is a polypeptide autocrine regulator. b. It can be produced in response to viral infections. c. It stimulates the immune system to attack infected cells and tumors. d.It is produced by almost all cells in the body.arrow_forwardWhich of the following statements best characterizes interferons? A. Interferons are a nonspecific defense used to respond to viruses. B. Interferons are part of the humoral immune response against viruses. C. Interferons are part of the humoral immune response against bacteria. D. Interferons are a nonspecific defense used to respond to bacteria.arrow_forwardExplain why each choice (a-d) is correct or incorrect. Which statement is true about T cells? a. They usually directly recognize antigens, which then activates a subpopulation of killer cells b. Their proliferation is enhanced by interleukins 1 and 2. c. Once activated, they cannot secrete cytokines. d. They will develop into cytotoxic T cells if antigen is complexed with class II MHC proteins.arrow_forward
- which two of following statements are true for an antigen prsent cell such as dendritic cell? a. Phagocytes are extra cellular pathogens b. Display processed pathoic peptide on the surface of the cell c. Produce antibodies specific for a pathogen d. Activate naive erythrocytesarrow_forwardJohn frequently encountered bacterial infections. Tests for immune cells showed the presence of mature B and T cells in his blood. Extensive analysis showed that John was lacking a gene responsible for a protein for complement factor C5. 1. Which immune response will be inhibited because of C5 deficiency? 2. How would it affect John’s ability to fight infections? Specifically what type of infections is he likely to have difficulty fighting? Please explain in detail. 3. What would have been the implications if he was lacking the C3 complement component?arrow_forwardWhich of the following is the end product of the complement system?a. properdin b. cascade reaction c. membrane attack complex d. complement factor C9arrow_forward
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