EP MICROBIOLOGY:W/DISEASES BY..-MOD.ACC
5th Edition
ISBN: 9780134607894
Author: BAUMAN
Publisher: PEARSON CO
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Textbook Question
Chapter 17, Problem 6CT
Some researchers want to distinguish B cells from T cells in a mixture of lymphocytes. How could they do this without killing the cells?
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You have acquired a vial of immature B cells and would like to use them to generate and harvest antibodies against a specific pathogen
of interest. You do not have access to T cells. How might you produce antibody from the B cells you have?
Add high concentrations of TI-1 antigen to the culture medium.
Add low concentrations of TI-2 antigen to the culture medium.
Add high concentrations of TI-2 antigen to the culture medium.
Add low concentrations of TI-1 antigen to the culture medium.
Although the immune system has two arms, it has been said, “No T cells, no immunity.” How is this so?
Superantigensa) are exceptionally large antigen molecules.b) cause a very large antibody response.c) elicit a response from a large number of T cells.d) attach non-specifically to B-cell receptors.e) assist in a protective immune response.
Chapter 17 Solutions
EP MICROBIOLOGY:W/DISEASES BY..-MOD.ACC
Ch. 17 - Prob. 1TMWCh. 17 - A diagnostician used an ELISA to show that a...Ch. 17 - To obtain immediate immunity against tetanus, a...Ch. 17 - Which of the following vaccine types is commonly...Ch. 17 - Prob. 3MCCh. 17 - When antigen and antibodies combine, maximal...Ch. 17 - An anti-antibody is used when _________. a. an...Ch. 17 - Prob. 6MCCh. 17 - Prob. 7MCCh. 17 - Prob. 8MC
Ch. 17 - Prob. 9MCCh. 17 - Prob. 10MCCh. 17 - Prob. 11MCCh. 17 - An antiserum is ________. a. an anti-antibody b....Ch. 17 - Prob. 13MCCh. 17 - Prob. 14MCCh. 17 - Prob. 15MCCh. 17 - Prob. 1MTFCh. 17 - Prob. 2MTFCh. 17 - Prob. 3MTFCh. 17 - Modified True/False 4. _________________ ELISA is...Ch. 17 - Prob. 5MTFCh. 17 - Match the characteristic in the first column with...Ch. 17 - Identify the chemicals represented by this artists...Ch. 17 - Prob. 2VICh. 17 - Compare and contrast the Chinese practice of...Ch. 17 - What are the advantages and disadvantages of...Ch. 17 - Compare the advantages and disadvantages of...Ch. 17 - How does precipitation differ from agglutination?Ch. 17 - Explain how a pregnancy test works at the...Ch. 17 - Compare and contrast herd immunity and contact...Ch. 17 - How does nephelometry differ from turbidimetry?Ch. 17 - Is it ethical to approve the use of a vaccine that...Ch. 17 - Which is worse: to use a diagnostic test for HIV...Ch. 17 - Discuss the importance of costs and technical...Ch. 17 - What bodily fluids, in addition to blood serum,...Ch. 17 - Why might a serological test give a false positive...Ch. 17 - Some researchers want to distinguish B cells from...Ch. 17 - Describe three ways by which genetic recombinant...Ch. 17 - How does a toxoid vaccine differ from an...Ch. 17 - Explain why many health organizations promote...Ch. 17 - Contrast a hemagglutination test with a viral...Ch. 17 - Prob. 11CTCh. 17 - Draw a picture showing, at both the molecular and...Ch. 17 - Using the following terms, fill in the following...
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- Herd immunity means that the entire population (not just those who are vaccinated) are protected from a disease. What is one way that herd immunity protects an unvaccinated person (such as an infant who is too young to be vaccinated or a person who is immunocompromised)?arrow_forwardHelper T cells: A) produce antibodies B) can act as memory cells C) initiate both the cell mediated response and the humoral response D) all of the abovearrow_forwardWhich of the following cells in the diagram shown below phagocytizes antigen-antibody complexes and is effective against parasitic worms? Courtesy Michael Ross, University of Florida А В C D E a) A O b) B c) C d) D O el Earrow_forward
- Granzyme and perforin are used by what cell type in the immune system to carry out its function? O 1) TH1 O 2) Neutrophil 3) Cytotoxic T cell O 4) Eosinophilarrow_forwardWhat does the highlighted structure do? A) develop T cells B) develop eosinophils C) develop B cells D) create red blood cellsarrow_forwardWhich of the following destroys virus-infected cells? Question 6 options: A) cytotoxic T cells B) B cells C) T helper cells D) dendritic cellsarrow_forward
- Which of the following is TRUE regarding Gram negative bacteria? a- Their cell wall is composed of a large proportion of sugars b- Their cell wall does not absorb the Gram stain and turns pink c- Their cell wall is composed of a small proportion of peptidoglycan d- Two of the above statements are true Which T-lymphocytes activate the B-cell response? 1- suppressor T-cells. 2- cytotoxic T-cells. 3- helper T-cells. 4- memory T-cells. Substances that are injected containing an antigen to stimulate the immune system to respond are called a- antibodies b- medications. c- vaccines d- antibioticsarrow_forwardUse the following choices for the next set of questions. A choice may be used zero or more times: a)MHC class I b) MHC class Il C) both MHC class I and II d) neither MHC class | or II e) cannot be determined 21) expressed on T cells 22) captures antigens present in endosomes 23) strongly affected by proteasomal inhibition 24) downregulated by many viruses 25) the genes responsible for expression are monomorphic, meaning that identical alleles are shared throughout the populationarrow_forwardGenerally, polysaccharides are not good antigens, because B cells that recognize them cannot get T-cell help. But for some pathogens, such as Streptococcus pneumoniae opsonization by antibodies that bind the thick polysaccharide "capsule" layer surrounding the bacteria is the major mechanism of clearing the infection. As expected, a pure polysaccharide vaccine is not terribly effective, but much better immunity is achieved by vaccinating with a polysaccharide covalently linked "conjugated" to an unrelated protein. Explain how this conjugate vaccine allows B cells capable of making anti-polysaccharide antibodies.arrow_forward
- An antigen acts is a molecule that acts like a name tag, allowing the immune system to recognize the cell it is attached to. The name tag might say: "Hello I'm... a deadly virus," or “Hello I'm... a healthy human cell." It is very important that an antigen for a deadly virus and a healthy human cell are very different, so that the immune system does not make a mistake and attack healthy human body cells. Which of the following molecules do you think would make good antigens for recognizing a pathogen? Justify your answer. You may choose more than one. 1) a cell wall protein 2) a piece of DNA inside a cell 3) a protein that is part of a flagella 4) a uniquely shaped protein that is part of a virus 5) a protein that is only made by prokaryotic cells 6) a protein that is only made by eukaryotic cellsarrow_forwardIs it possible for the immune system to eliminate the viruses without T cells? Why or why not?arrow_forwardHow could you distinguish the type of T cell that is active in an immune response? What outcomes would you be looking for to help determine which T cell is producing that result? Explain and provide examples.arrow_forward
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