CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 24, Problem 10TYK
Which of the following statements is not true?
a. An antibody has more than one antigen-binding site.
b. An antigen can have different epitopes.
c. A lymphocyte has receptors for multiple and different antigens.
d. A bacterium has more than one antigen.
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An antigen must be considered:
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Chapter 24 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 24 - Complete this concept map to summarize the key...Ch. 24 - Foreign molecules that elicit an immune response...Ch. 24 - Which of the following is not part of the...Ch. 24 - Which of the following best describes the...Ch. 24 - Prob. 5TYKCh. 24 - Prob. 6TYKCh. 24 - Prob. 7TYKCh. 24 - Prob. 8TYKCh. 24 - Prob. 9TYKCh. 24 - Which of the following statements is not true? a....
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- Antibodies 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_forwardExplain why each choice (a-d) is correct or incorrect. Allergens differ from antigens because a. Allergens produce an abnormally large immune response to what is an otherwise harmless particle. b. Allergens do not involve the leucocytes, they simple stimulate the inflammatory response. c. Allergens are only active seasonally and are generally harmless to the body. d. Allergens are primarily plant derived while antigens are bacterial or viral in nature.arrow_forwardWhy must antibody treatments like ZMapp be composed of monoclonal antibodies instead of polyclonal antibodies? a. Therapeutic antibodies must all bind the same epitope. b. Therapeutic antibodies must NOT all bind the same epitope. c. Monoclonal antibodies have much higher binding affinity than polyclonal antibodies. d. Monoclonal antibodies have much lower binding affinity than polyclonal antibodies. e. Monoclonal antibodies can be produced indefinitely; polyclonal antibodies can only be produced for a short time. IS it B? Can you please explainarrow_forward
- Which cells produce antibodies? a. Neutrophils. b. Dendritic cells. c. Cytotoxic T cells. d. Plasma cells. The role of the humoral immune response is to a. kill infected cellsb. fight pathogens found in body fluid c. prevent pathogens from entering the body d. initiate an inflammatory responsearrow_forwardWhich of the following statements about T cells is false? a. Helper T cells release cytokines while cytotoxic T cells kill the infected cell. b. Helper T cells are CD4+, while cytotoxic T cells are CD8+. c. MHC II is a receptor found on most body cells, while MHC I is a receptor found on immune cells only. d. The T cell receptor is found on both CD4+ and CD8+ T cells.arrow_forwardWhich portion of an antibody provides antigen binding sites? A.Heavy chain B.Constant portion C.Light chain D.Variable portionarrow_forward
- Which of the following statements does not describe tolerogens accurately? Select one: A. They can be the same molecules as immunogens. B. They lead immune cells to become unresponsive. C. They can be foreign antigens. D. They affect B cells but not T cells. E. The can be presented by antigen- presenting cells.arrow_forwardAnti-A antibody will react with cells with: a. A-Antigen b. B-antigen OC. C-antigen d. D-antigenarrow_forwardWhich best describes the term "immunological disorder"? a. An exaggerated or inadequate immune response. b. A disorder that destroys the immune system. c. Any genetic disease. d. A complete lack of immune function. e. Immune problems that cause disease but cannot be detected.arrow_forward
- An antigen-presenting cell (APC)a. presents antigens to T cells.b. secretes antibodies.c. marks each human cell as belonging to that person.d. secretes cytokines only.arrow_forwardwhich 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_forwardAfter a second exposure to a vaccine, Select one: A. Antibodies are made slowly and in greater amounts. B. Antibodies of the IgM class are produced. C. Immunity lasts less than after the first exposure. D. Plasma cells are active.arrow_forward
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