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
expand_more
expand_more
format_list_bulleted
Question
Chapter 43, Problem 20TYK
Summary Introduction
The complex system of the immune system includes special type of cells called lymphocytes. These lymphocytes are immune cells that act against infectious agents like bacteria, virus, and other pathogens. Lymphocytes are classified into two types namely B lymphocytes or B cell, and T lymphocytes or T cell based on the place where they are originated. B cells are synthesized in the bone marrow and T cells in the thymus. There is one more category in lymphocytes that includes natural killer cells.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of the following statements regarding T cells activated by specific antigen is incorrect?
a. They receive co-stimulatory signals through CD28.
b. They suppress expression of sphingosine 1-phosphate (SIP).
c. They take several days before differentiating into effector T cells.
d. They cease to secrete and respond to interleukin-2 (IL-2).
e. They begin to express CTLA4, which serves to limit T-cell proliferation.
Explain why each choice (a-d) is correct or incorrect.
T cells are differentiated into two groups based on their glycoproteins CD4 or CD8. Which of the following is true of CD4 T cells?
a. They become cytotoxic T cells.
b. The become antigen presenting cells.
c. They become T helper cells.
d. They become plasma cells.
Which event happens first during cytotoxic T-cell activation?
a. Cytotoxic T cells secrete perforin and granzyme.
b. Cytotoxic T cells recognize foreign antigen presented on the surface of a MHC I molecule.
c. Cytotoxic T cells proliferate to form many new cells specific for the same antigen
d. Cytotoxic T cells recognize foreign antigen presented on the surface of a TCR.
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...
Knowledge Booster
Similar questions
- Match the immune cell with its main function. ___dendritic cell a. professional phagocyte ___B cell b. antigen-presenter ___helper T cell c. activates other lymphocytes ___NK cell d. makes antibodies ___macrophage e. kills ailing body cells that lack MHC markersarrow_forwardMatch the immunity concept with the best description. ___anaphylactic shock a. recognizes antigen ___immune memory b. inadequate immune response ___autoimmunity c general defense mechanism ___inflammation d. immune response against ones own body ___immune deficiency e. secondary response ___antigen receptor f. acute allergic reaction ___antigen processing g. presenting antigen together with MHC markersarrow_forwardHow do B and T cells differ with respect to antigens that they bind?arrow_forward
- Which type of T cell is most effective against viruses? Th1 Th2 cytotoxic T cells regulatory T cellsarrow_forwardA patient has contracted an upper respiratory infection caused by a virus. Her initial adaptive immune response to the virus is due to what mechanism of immune surveillance?a. The display of viral antigens by naïve B-cells on class I MHC, which is then recognized by helper T-cells that then activate cytotoxic T-cells.b. The display of viral antigens on class I MHC, which is then displayed to sensitized naïve B-cells, leading to the production of antibodies.c. The display of viral antigens on class II MHC by a sensitized naïve B-cell, which is then activated by a helper T-cell primed to the same antigen to begin producing antibodies.d. The display of viral antigens on class I MHC, which is then displayed to helper T-cells, leading to the activation of naïve cytotoxic T-cells.arrow_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_forward
- Adaptive 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_forwardin antibody-mediated immunity, what happens immediately after B cells are activated? a. the foreign antigen-MHC complex is displayed on the cell surfaces. b. activated T helper cells interact with the B cells. c. the B cells are cloned. D. antibodies combine with antigens on the pathogen surface.arrow_forwardActivated helper T Cells participate in which of the following processes? a.) Differentiation of memory B cells b.) Activation of cytotoxic T Cells c.) Facilitation of macrophage phagocytosis d.) All of abovearrow_forward
- All of the following are characteristic of regulatory T cells except a. they express CD25 b. they facilitate the proliferation of naive T cells interacting with the same antigen-presenting cell c. they express CD4 d. they express the transcriptional repressor FoxP3 e. they express MHC class II-restricted T-cell receptors specific for self antigen.arrow_forwardIn a normal individual, a T cell that interacts with a self-antigen in the thymus will more than likely undergo what process (which answer is best)? A) apoptosis B) release granules C) activation D) extravasation E) anergyarrow_forwardA second exposure to a given foreign antigen elicits a rapid and pronounced immune response becausea. passive immunity occurs after the first exposure.b. some B cells differentiate into memory B cells after the first exposure.c. a greater number of antigen-presenting cells are available due to the earlier exposure.d. the array of class II MHC proteins expressed by antigen-presenting cells is permanently altered by the first exposure.e. Both a and b are correct.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Anatomy & Physiology
Biology
ISBN:9781938168130
Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College