EBK BIOLOGY
5th Edition
ISBN: 8220101337627
Author: Maier
Publisher: PEARSON
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Question
Chapter 20, Problem 12LTB
Summary Introduction
To determine:
Whether the statement 'the allergic reaction are causes when the body is not able to produce antibodies towards antigen' is true or false.
Introduction:
The allergy is the response of the immune system, when it sometimes overreacts to a self or a non-harmful antigen, which may provoke allergic responses in the body. This overreaction can be very severe and, in some circumstances, it can cause death.
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- A friend of yours recently said they came in contact with an antigen that is known to cause an allergic reaction based upon a family history. However, your friend says they did not feel an allergic reaction. You believe though your friend will suffer an allergic reaction if they come in contact with the antigen again. Please discuss what happened with your friend with the first initial contact and what will happen if/when your friend comes in contact with antigen a second time. Be thorough as possible.arrow_forwardAntigens include proteins, polysaccharides, and various small molecules that stimulate antibody production. True or False?arrow_forwardWith regards to antibodies define the following terms in the space belowa. CDRsb. Constant regionsarrow_forward
- True/False: Like innate sensors of infections (TLRs, NLRs, RLRs), antibodies frequently recognize nucleic acids of pathogenic organismsarrow_forwardExplain what causes an allergic reaction.arrow_forwardchoose one: When an antibody binds to more than one antigenic particle the best description will be: Cross reacting orclonal expansion or proliferationarrow_forward
- An acute allergic reaction can lead toarrow_forwardAntibodies attached to B lymphocytes that act as receptors for antigen are: IgA IgE IgD IgM IgGarrow_forwardHuman immunodeficiency virus (HIV) preferentially destroys CD4+ cells. Specifically, what effect does this have on antibody and cell-mediated immunity? Please simple and original response. Thank you (:arrow_forward
- Antibodies don't kill any pathogen directly. Describe FIVE different ways that antibodies help our body fight diseases.arrow_forwardDefine polyclonal antibodies.arrow_forwardMatch the class of antibody with its appropriate structure/function. 1st choice This dimeric antibody is responsible for localized protection on mucosal surfaces. 2nd choice This monomeric antibody functions is mediating the allergic response. 3rd choice This monomeric antibody presence on B cells functions in initiation of the immune response. 4th choice This monomeric antibody enhances phagocytosis, neutralizes toxins and viruses, and protects fetus and newborn. 5th choice This pentameric antibody is especially effective against microorganisms; first antibodies produced in response to initial infection. IgM| IgD IgE IgA IgG > >arrow_forward
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