antibodies

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8 Terms

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antibodies

globular proteins formed from plasma proteins known as immunoglobins

<p>globular proteins formed from plasma proteins known as immunoglobins</p>
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antibody structure

4 polypeptide chains, 2 heavy and 2 light chains…as well as a variable region…held together by disulfide bridges

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variable region

2identical antigen binding sites…different on each antibody molecule

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R groups

found in the variable region to provide specificity

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production and secretion

by B cells/plasma cells to respond to antigens

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antigen

non self or foreign material in the body

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constant region

binds to receptors on phagocytes, macrophages and neutrophils…gives the class of antibody

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functions of anitbodies

combine with pathogens to prevent cell invasion…attach to flagella to decrease bacterial activity…agglutinate pathogens…burst cell walls by punching holes…coat bacteria easing phagocytosis…neutralise bacterial toxins