Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 43, Problem 5TYK
Summary Introduction
Introduction: The immune system of the human is divided into two types, innate immune system, and the adaptive immune system. Both the immune systems give protection against various disease-causing microbes. Different cell types and proteins are involved in immune mechanisms. The types of cells that are involved in immunity are lymphocytes (T & B lymphocytes), neutrophils, monocytes, natural killer cells, and macrophages. In response to pathogen recognition, these cells secrete a variety of proteins, which act against pathogens.
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Students have asked these similar questions
Considering the mechanisms of innate immunity, which of the following pairs is accurately matched?
Select one:
a. Neutrophils – increase in number in response to bacterial infections
b. Complement – slow the spread of viral infections
c. Interferons – assist antibodies in the destruction of pathogens
d. Eosinophil – recognize abnormal cells, such as cancer cells
In innate immunity:
A. the immunity to a substance is produced only after exposure to that substance and each time the body is exposed to a particular substance, the response is the same.
B. immunity to a substance is produced only after exposure to that substance.
C. each time the body is exposed to a particular substance, the response is the same.
D. the ability to recognize and remember a particular substance is important.
Which of the following statements regarding the lymphatic system is not true?
A. Lymph originates from excess cellular fluid
B. Lymph nodes trap bacteria
C. Swelling of the lymph nodes indicates dysfunction of the lymphatic system
D. Swelling of the lymph nodes indicates proper functioning of the lymphatic system
Explain why each choice (a-d) is correct or incorrect.
B lymphocytes are categorized as part of the adaptive branch of the immune system for all of the following reasons but one. Which of the following is NOT one of the reasons B lymphocytes are considered part of the adaptive immunity?
a.They produce memory cells when activated.
b.Their receptors will bind to only one antigen.
c.They require co-stimulation from an activated T helper cell
d. They are a first line of defense that can begin killing pathogens immediately
Chapter 43 Solutions
Study Guide for Campbell Biology
Ch. 43 - Briefly describe the insect defense system against...Ch. 43 - Prob. 2IQCh. 43 - Prob. 3IQCh. 43 - Prob. 4IQCh. 43 - Prob. 5IQCh. 43 - Prob. 6IQCh. 43 - Prob. 7IQCh. 43 - Prob. 8IQCh. 43 - Prob. 9IQCh. 43 - Prob. 1SYK
Ch. 43 - Prob. 2SYKCh. 43 - Although innate and adaptive immunity were...Ch. 43 - Prob. 1TYKCh. 43 - Prob. 2TYKCh. 43 - Prob. 3TYKCh. 43 - The process of clonal selection accounts for a....Ch. 43 - Prob. 5TYKCh. 43 - Which of the following destroys a target cell by...Ch. 43 - Prob. 7TYKCh. 43 - Prob. 8TYKCh. 43 - Prob. 9TYKCh. 43 - Prob. 10TYKCh. 43 - Prob. 11TYKCh. 43 - Prob. 12TYKCh. 43 - Prob. 13TYKCh. 43 - Prob. 14TYKCh. 43 - Prob. 15TYKCh. 43 - Prob. 16TYKCh. 43 - Prob. 17TYKCh. 43 - What is the key advantage to the use of monoclonal...Ch. 43 - Prob. 19TYKCh. 43 - Prob. 20TYKCh. 43 - Prob. 21TYKCh. 43 - From which of the following conditions would an...
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- Concerning the adaptive immunity, which of the following statements is CORRECT: a. The adaptive immune response occurs very rapidly b. The adaptive immune response leads to us remembering antigens c. The adaptive immune response occurs mainly in the thymus d. The adaptive immune response is mostly dependent on antibodies e. The adaptive immune response is mostly dependent on the complement cascade 46) Concerning acute inflammation, which of the following statements is INCORRECT: a. localised redness occurs because of hyperaemia b. localised heat occurs because of increased bloodflow c. Release of bradykinins and other inflammatory mediators causes localised paind. swelling occurs because capillary permeability is reduced, preventing plasma recirculatione. Inflammatory chemicals at the site of inflammation act as chemotactic agentsarrow_forwardAdaptive immunity includes both humoral and cell-mediated immune responses, which interact but also have distinct roles in adaptive immunity. Identify the example of a strictly cell-mediated immune response. A. A cytotoxic T cell destroys an infected host cell. B. A helper T cell activates a B cell. C. A B cell gives rise to plasma cells, which release antibodies. D. An antigen is taken in by an antigen-presenting cell.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 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_forwardWhich of these statements about complement proteins C3a and C5a is false?a. They are released during the complement fixation process.b. They stimulate chemotaxis of phagocytic cells.c. They promote the activity of phagocytic cells.d.They produce pores in the victim plasma membrane.arrow_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_forward
- Explain why each choice (a-d) is correct or incorrect. All of the following are true of the classical pathway of complement activation EXCEPT one. Select the one answer that does NOT describe the classical pathway of complement activation. a. It is an example of overlap between innate and adaptive immune function. b. It requires that circulating antibodies are bound to antigens. c. Classical activation will result in enhanced inflammation, opsonization as well as formation of MAC proteins. d. It activates T helper cells by presenting antigen to them.arrow_forwardAny aspect of the immune system can be deficient. Which of the following deficiencies would primarily affect the BARRIER function of immunity? Group of answer choices A. Complement Deficiencies, in which a variety of complement proteins do not function properly B. DiGeorge Syndrome, in which the thymus does not develop properly C. Selective IgA deficiency, in which IgA antibodies are produced in very low amounts D. Severe Combined Immune Deficiency (SCID), in which all T and B cell functions are absentarrow_forwardThe immune system includes the various responses the body uses to ensure survival in the presence of disease-causing agents. Identify the example of innate immunity. A. Infected host cells are killed by toxic proteins from cytotoxic T cells. B. Toll-like receptors bind to foreign molecule fragments to initiate immune response. C. CD4 accessory proteins on the helper T cell surface bind to class II MHC molecules. D. IgE antibodies recognize and attach to pollen grains, stimulating an allergic reaction.arrow_forward
- Explain why each choice (a-d) is correct or incorrect. A vaccine is effective because a. The vaccine contains the antibodies necessary to fight infection. b. The vaccine contains the lymphocytes necessary to fight infection. c. The secondary response of the adaptive immunity is faster and more efficient than the primary response. d. B lymphocytes are unable to mount an immune response the first time they are exposed to a new pathogen.arrow_forwardAntibodies against a specific antigen can be injected into a person to provide passive immunity. For which reason is this NOT as effective as the process of vaccination with that antigen? Select one: a. Injection of antibodies may cause allergic reactions, while vaccination never causes allergic reactions. b. Injection of antibodies does not provide long-lasting immunity, and vaccination with antigens triggers a clonal selection of B cells and cytotoxic T cells. c. Vaccination with antigens triggers a clonal selection of B cells and cytotoxic T cells. d. Injection of antibodies does not provide long-lasting immunity. e. Injection of antibodies does not provide long-lasting immunity and may cause allergic reactions, while vaccination never causes allergic reactions.arrow_forwardWhat are the roles of the innate immune system? Select all that apply. A. identity self vs. non-self B. provide a physical barrier to infection C. initiate inflammation D. suppress proliferation E. call for help from the adaptive immune system F. circulate fluids through the lymphatic systemarrow_forward
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