Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 52, Problem 5TY
Summary Introduction
Introduction: The body contains a well-defined system to protect itself from infections and harmful agents. This system is known as the immunity system. The two types of immunity systems are innate and adaptive immunity. The immunity that an organism contains from the time of birth is called innate immunity. However, the immunity that the organism acquires during its lifetime is called adaptive immunity.
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Students have asked these similar questions
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
B cells that produce and release large amounts of antibody are called:
a. Memory cells
b. Basophils
c. Plasma cells
d. Killer cells
e. Neutrophils
Which of the following explains why dendritic cells, but not macrophages or B cells, contribute to the activation of naive T cells?
a. Macrophages and B cells do not express MHC class II molecules until they are activated.
b. Dendritic cells upregulate B7 after engaging innate immunity receptors at sites of infection.
c. Dendritic cells express higher levels of CTLA4.
d. Macrophages and B cells do not process antigen.
e. Dendritic cells use Toll-like receptors to hold antigen in place for extended periods of time.
Chapter 52 Solutions
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- Which of the following is part of the second line of defense against pathogens?a. skin b. mucus membranesc. lysozyme in tears d. phagocytes Which of the following does NOT have MHC class II molecules on the surface of their cell membranes? a. Macrophages.b. Dendritic cells.c. B cells.d. Helper T cells.arrow_forwardWhich of the following is both a phagocyte and an antigen-presenting cell? a. NK cell b. eosinophil c. neutrophil d. macrophagearrow_forwardWhich of the following cells are primarily targeted by HIV?a. Nerve cells.b. Helper T celIs.c. Phagocytes.d. Cytotoxic T cells.arrow_forward
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- What is the predicted outcome if a patient receives an allogeneic hematopoietic cell transplant from a family member, and then receives a kidney transplant several months later from the same donor? a. Acute kidney rejection because the patient’s hematopoietic system has been fully reconstituted with patient-derived alloreactive T cells and NK cells. b. Graft-versus-host disease mediated by alloreactive T cells in the transplanted kidney. c. Secondary immune response by patient-derived memory T lymphocytes that were initially activated by the hematopoietic cell transplant. d. The patient is tolerant to alloantigens on the kidney graft and does not require long-term immunosuppressive drugs.arrow_forwardAll of the following occur after B cells leave the bone marrow except a. peripheral tolerance b. receptor editing c. differentiation into plasma cells d. formation of follicular center cell lymphomas e. production of memory B cells f. recirculation between lymph, blood, and secondary lymphoid tissues.arrow_forwardWhich of the following statements is INCORRECT regarding memory B cells? a. Memory B cells express high levels of FcyRIIB1. b. Memory B cells differentiate into plasma cells more rapidly than do naive B cells. Oc. In secondary responses, the number of pathogen-specific B cells is increased compared to a primary response. d. The sensitivity of memory B cells is improved compared with naive B cells because affinity maturation has occurred. e. Memory B cells are maintained for life.arrow_forward
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