What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 27, Problem 7MC
Summary Introduction
Introduction:
Antibodies are the molecules produced by the B cells that bind to antigens and flag the cell for phagocytosis.
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Ibuprofen dampens the immune system’s inflammation response.What might be a short-term consequence of taking ibuprofen?a. Blood vessels may become less permeable.b. Antibodies may become less active.c. Cytotoxic T cells may begin to divide.d. All of the above are correct
Choose the most accurate characteristic of B cells.
A) They help establish and control the sensitivity of the immune response.
B) They stimulate the activities of T cells.
C) They attack foreign cells, normal cells infected with viruses, and cancer cells that appear in normal tissues.
D) They continually monitor peripheral tissues.
E) They differentiate into plasma cells that secrete antibodies.
Which of these statements about T lymphocytes is false? a. Saome T cells promote the activity of B cells. b. Some T cells suppress the activity of B cells. c. Some T cells secrete interferon. d. Some T cells produce antibodies.
Chapter 27 Solutions
What Is Life? A Guide to Biology with Physiology
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- Which of the following does not occur during a secondary immuneresponse?a. Antibodies are made quickly and in great amounts.b. Antibody production lasts longer than in a primary response.c. Clonal selection occurs for B cells.d. All of these are correct.arrow_forwardThe formed elements of the blood: A. are produced in the red bone marrow B.include specific and non-specific immune cells C. are produced in the red bone marrow and include specific and non-specific immune cells, and all stem from megakaryoblasts D. both are produced in the red bone marrow and include specific and non-specific immune cells E.all stem from megakaryoblastsarrow_forwardWhich of these statements about the Fab portion of antibodies is true? a.It binds to antigens. b.Its amino acid sequences are variable. c. It consists of both H and L chains. d. All of these are true.arrow_forward
- Mark the following statements as true or false. If a statement is false, correct is to make a true statement. a. In the primary immune response, the lag phase lasts about 5 days, during which time B cells proliferate and differentiate. b. The secondary immune response is mediated by plasma cells. c. Subunit vaccines consist of pathogens that are alive but unable to cause disease. d. Vaccinations are given to induce the production of the inflammatory responsearrow_forwardAntibodies a Are produced by B cells and T cells b Can be present on the surface of the B cell and can be secreted by a plasma cell c Are produced by T cells that have been activated d Are secreted by the B cell prior to antigen recognitionarrow_forwardWhich of the following statements is NOT true of a fever?a. Temperature is regulated by chemicals that reset the body's thermostat to a higher setting.b. The higher than normal body temperature impairs the functions of some bacteria.c. The higher than normal body temperature is always harmful.d. The higher temperature impairs leukocytes andantibody production.e. Both c and d. Which of the following statements is NOT true of antibodies?a. They bind to foreign antigens, making them susceptible to being engulfed by phagocytes.b. They serve as specific binding sites on B cells.c. An antibody is usually able to bind to a variety of different types of antigensd. They are composed of two heavy chains and two light chains.arrow_forward
- What type of cells secrete antibodies? A) Cytotoxic T cells B) Helper T cells C) B cells D) Plasma cells E) Antigen-presenting cellsarrow_forwardWhich 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_forwardTo 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_forward
- In 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_forwardWhich statement is incorrect?a. IgG is the most abundant antibody in bloodb. Antibodies can exist at the surface of a B cell, or circulate freely in blood.c. IgM is found in the lining of the genitourinary, gastrointestinal and respiratory tractsd. IgE is involved allergic reactionse. Macrophages are involved in chronic infectionsarrow_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
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