Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 45, Problem 4TYK
Summary Introduction
Introduction:
B cells are a kind of white blood cells, which play an important role in the humoral immune response of the adaptive immunity by releasing the antibodies. B lymphocytes differentiate into two types of cells, which are the plasma B cells and the memory B cells.
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CHAPTER 20
The Lymphatic System and Immunity
Matching
SECTION 3 Revie w
Match each lettered term with the most closely related description.
a. opsonization
1
b. helper T cells
Two parallel pairs of polypeptide chains
Found on helper T cells
C. antibody
d. class II MHC
3
Active and passive
4 Transfer of antibodies
e. costimulation
Attacked by HIV
f. IgM
6 Enhances phagocytosis
g. class I MHC
h. IgG
7 MHC proteins present in the plasma
membranes of all nucleated cells
i. passive immunity
j. anaphylaxis
8
Differentiate into memory and plasma cells
9
MHC proteins present in the plasma
membranes of all APCS and lymphocytes
9
k. CD4 markers
10
I. acquired immunity
10 Antibodies used to determine blood type
11
m. B lymphocytes
11 Secondary binding process required for T cell activation
12
12 Accounts for 80 percent of all immunoglobulins
13
13 Circulating allergen stimulates mast cells throughout body
Match each lettered term with the
A primary difference between how B cells recognize antigen and how T cells recognize antigen is that
a. T-cell receptors can bind antigen only after secretion of the T-cell receptor from the surface of the T cell
b. antibodies can bind only to denatured proteins
c. T-cell receptors can bind to carbohydrate groups or clusters of amino acids
d. B cells recognize degraded proteins bound to major histocompatibility molecules
e. T cells recognize degraded proteins bound to major histocompatibility molecules.
Antibodies can have multiple mechanisms of action. The main mechanism is "flagging" a foreign body for phagocytosis and degradation. Another mechanism is...
Select one:
a.
Binding of the Fc domain to T cells for cooperative antigen recognition and destruction.
b.
Altering the local pH by the formation of carbamate upon reaction with CO2 to denature protein antigens.
c.
Binding of the variable region to multiple different/distinct sites on the antigen.
d.
None of these.
e.
Binding of the antigen in regions essential for its function.
Chapter 45 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 45.1 - Prob. 1SBCh. 45.1 - What are the key differences between innate...Ch. 45.2 - Prob. 1SBCh. 45.2 - What processes specifically cause each...Ch. 45.2 - Prob. 3SBCh. 45.2 - Prob. 4SBCh. 45.3 - How, in general, do antibody-mediated and...Ch. 45.3 - Prob. 2SBCh. 45.3 - Prob. 3SBCh. 45.3 - What is clonal selection?
Ch. 45.3 - Prob. 5SBCh. 45.4 - Prob. 1SBCh. 45.4 - Prob. 2SBCh. 45.5 - Compare invertebrate and mammalian immune...Ch. 45 - Prob. 1TYKCh. 45 - Which of the following is not a component of the...Ch. 45 - Prob. 3TYKCh. 45 - Prob. 4TYKCh. 45 - Prob. 5TYKCh. 45 - Prob. 6TYKCh. 45 - Prob. 7TYKCh. 45 - Prob. 8TYKCh. 45 - After Sally punctured her hand with a dirty nail,...Ch. 45 - Prob. 10TYKCh. 45 - Prob. 11TYKCh. 45 - Prob. 12TYKCh. 45 - Prob. 13TYKCh. 45 - Prob. 14TYKCh. 45 - Apply Evolutionary Thinking Defensins are found in...Ch. 45 - Prob. 1ITDCh. 45 - Prob. 2ITDCh. 45 - Prob. 3ITDCh. 45 - Prob. 4ITD
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- To become a fully activated, antibody-secreting cell, B cells usually need: a. to encounter an antigen or receive a signal delivered by a helper T cell. b. to ingest a foreign invader such as a microobe. c. activation by a plasma cell d. contact with an antigen and helper T cell cytokinesarrow_forwardIndicate to which branch(es) of the immune system the following statements apply, using H for the humoral branch and CM for the cell-mediated branch. Some statements may apply to both branches (B). a. Involves B cells b. Involves T cells c. Responds to extracellular bacterial infection d. Involves secreted antibody e. Kills virus-infected self cellsarrow_forwardThe germinal center of a lymph node a. Is the location of B cells undergoing clonal expansion b. Is the location of plasma cells c. Is the location of B cells that have not yet contacted their antigen d. In a micrograph, Is the light-colored center of an activated lymphoid folliclearrow_forward
- B cells that produce and release large amounts of antibody are called: a. Memory cells b. Basophils c. Plasma cells d. Killer cells e. Neutrophilsarrow_forwardThere is a second, delayed spike of IgM in the secondary response. Why might this be occurring?Choose one: A. When there is a lot of IgG antibody floating around in the bloodstream, some of the monomers link up into IgM pentamers. B. Some IgM is being made by the plasma cells producing the IgG antibodies. C. New naive B cells have been able to activate and produce a new primary response. D. Some of the plasma cells are switching back to IgM production after producing other isotypes for a while.arrow_forwardWhich of the following statements regarding negative selection of B cells is correct? a. Negative selection is a process that occurs in secondary lymphoid organs. b. Negative selection is a process that occurs in the bone marrow but not in secondary lymphoid organs. c. Negative selection ensures that B cells bearing receptors for pathogens that will not be encountered in a person’s lifetime are eliminated to make room for B cells bearing useful receptors. d. Negative selection eliminates B cells at the end of an infection as a means of terminating an immune response once the pathogen has been removed from the body. e. Negative selection ensures that autoreactive B cells are prohibited from emerging in the body.arrow_forward
- The following events occur in humoral immunity, leading to an activated B cell in a T dependent manner. Of the steps listed below, which would be step number 5 in the process. Hint: only include these steps in the numbering...order the steps and select which one is #5 A. secretion of cytokines by Th B. Receptor mediated endocytosis C. B cell receptors recognize and bind to an antigen D. Recognition by Th E. Digestion and processing of the antigen by the B cell F. Display of the antigen along with MHC proteinsarrow_forwardThe T-cell antigen receptor is similar to immunoglobulin molecules in that it: a. can cross the placenta and provide protection to a fetus b. remains bound to the cell surface and is never secreted c. binds complement d. contains V and C regions on each of its chainarrow_forwardExplain 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.arrow_forward
- A number of minor cancerous cells and infected viruses, such as Epstein Barr (EBV), are able to go undetected by cytotoxic T cell degradation by what possible mechanism? a. the production of normal class I MHC molecule b. helper T cell activation c. the deactivation of the complement system d. tumor antigen expression e. the production of the class II major histocompatability (MHC) moledulearrow_forwardWhich of the following is TRUE about B cells? A. are lymphocytes B. become mature in the thymus C. are responsible for cell-mediated immunity D. are produced in the adult spleenarrow_forwardAll of the following are properties of B-1 cells except a. They exhibit polyspecificity. b. They arise during fetal development. c. They express CD5 on their cell surface. d. They are commonly associated with the cause of chronic lymphocytic leukemia (CLL). e. They have extensive N nucleotide diversity in VDJ junctions.arrow_forward
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