Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Question
Chapter 35.3, Problem 2CC
Summary Introduction
To determine:
The cells and functions that would be deficient, if child were born without a thymus. Determine the functions do cell-surface antigen receptors fulfill for memory B-cells.
Introduction:
The thymus is a gland which is responsible for the development of T-cells which are one of the important types of white blood cells and play an important role in the immune system.
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About Antigen presenting cells, it is CORRECT to affirm that:
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Chapter 35 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Ch. 35.1 - Pus is both a sign of infection and an indicator...Ch. 35.1 - MAKE CONNECTIONS How do the molecules that...Ch. 35.1 - Prob. 3CCCh. 35.2 - Prob. 1CCCh. 35.2 - Explain how memory cells strengthen the immune...Ch. 35.2 - WHAT IF? If both copies of a light-chain gene and...Ch. 35.3 - Prob. 1CCCh. 35.3 - Prob. 2CCCh. 35.3 - Prob. 3CCCh. 35 - Prob. 1TYU
Ch. 35 - Prob. 2TYUCh. 35 - Prob. 3TYUCh. 35 - Prob. 4TYUCh. 35 - Prob. 5TYUCh. 35 - Prob. 6TYUCh. 35 - Prob. 7TYUCh. 35 - DRAW IT Consider a pencil-shaped protein with two...Ch. 35 - MAKE CONNECTIONS Contrast clonal selection with...Ch. 35 - Prob. 10TYUCh. 35 - FOCUS ON EVOLUTION Describe one invertebrate...Ch. 35 - Prob. 12TYUCh. 35 - Prob. 13TYU
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Similar questions
- Explain the "antigen recognition by cells of adaptive immunity" in a simple way. Relate it with Class I,II,III MHC molecules/genes. Thank you NOTE: Bullet formarrow_forwardB lymphocytes, the precursors of plasma cells, are triggered to proliferate by the binding of multivalent antigens to receptors on their surfaces. The cellsurface receptors are transmembrane immunoglobulins. Univalent antigens, in contrast, do not activate B cells. (a) What do these findings reveal about the mechanism of B-cell activation? (b) How might antibodies be used to activate B cells?arrow_forwardExplain why are B cells known as Antigen Presenting cells and what happens after antigen presentation?arrow_forward
- Sketch a B cell antigen receptor. Label the V and C regions of the light and heavy chains. Label the antigenbinding sites, disulfide bridges, and transmembrane region. Where are these features located relative to the V and C regions?arrow_forwardWhich type of MHC-class molecule is found on all nucleated cells and is used to communicate with cytotoxic T-lymphocytes? Which classes are displayed on APCs, and which class is used specifically to communicate with (a) helper T-lymphocytes and (b) cytotoxic T-lymphocytes?arrow_forwardWould the primary response or the secondary response be more affected by a lack of memory B cells for a particular antigen?arrow_forward
- Where are major histocompatibility complex-I (MHC-I) molecules located in the human body (cells)? Briefly describe how these surface markers present antigens to other cells. (Make sure to include where the antigen originates and what type of T-cell interacts with MHC-I antigen presentation.)arrow_forwardExplain the typical immunophenotypic features of peripheral B cells in: (i) X-linked Agammaglobulinaemia (ii) CD40L (CD154) deficiency (iii) B-Chronic Lymphocytic Leukaemia. wwarrow_forwardExplain the typical immunophenotypic features of peripheral B cells in: (i) X-linked Agammaglobulinaemia (ii) CD40L (CD154) deficiency (iii) B-Chronic Lymphocytic Leukaemia.arrow_forward
- A flu-infected cell has down-regulated its MHC class I expression. The lymphocytes below comes to the site and interacts with the cell. How does the downregulation of MHC class I affect these ability of lymphocytes to kill the infected cell? a) influenza-specific T cell b) NK cell c) herpes-specific T cell Indicate whether the possibility increases, decreases or is unchanged for each cell.arrow_forwardCorrectly order the steps in cellular Immunity. Below is a sequence of events. Place them in the order they should occur, number 1 being the first item. Select the step number from the drop down next to each item. Items to order: a) .Cytotoxic T cell (CTL) recognizes the infected host cell b) The CTL secretes perforin and granzyme, causing apoptosis c) The CTL interacts with epitope presented by MHC-I on the dendritic cell d) The helper T cell activates the CTL cellarrow_forwardIf the thymus of an adult experimental animal is removed, the following observations can be made: (a) No immediate effect occurs, and (b) after 1 year, decreases occur in the number of lymphocytes in the blood, the ability to reject grafts, and the ability to produce antibodies. Explain these observations.arrow_forward
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