{"id":294,"date":"2024-10-08T13:36:41","date_gmt":"2024-10-08T11:36:41","guid":{"rendered":"https:\/\/mruizsvt.fr\/?page_id=294"},"modified":"2024-11-05T15:35:30","modified_gmt":"2024-11-05T14:35:30","slug":"2-3-que-se-passe-t-il-quand-les-phagocytes-narrivent-pas-a-eliminer-les-bacteries","status":"publish","type":"page","link":"https:\/\/mruizsvt.fr\/index.php\/3-eme\/chapitre-1-immunologie\/2-3-que-se-passe-t-il-quand-les-phagocytes-narrivent-pas-a-eliminer-les-bacteries\/","title":{"rendered":"2.3 Que se passe-t-il quand les phagocytes n\u2019arrivent pas \u00e0 \u00e9liminer les bact\u00e9ries\u00a0?"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"has-text-align-center\"><strong>Exercice classe<\/strong><\/p>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/mruizsvt.fr\/wp-content\/uploads\/2024\/10\/doc-9.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Contenu embarqu\u00e9 doc 9.\"><\/object><a id=\"wp-block-file--media-73773f90-3ae2-4e6d-9b0a-84781862f9e2\" href=\"https:\/\/mruizsvt.fr\/wp-content\/uploads\/2024\/10\/doc-9.pdf\">doc 9<\/a><a href=\"https:\/\/mruizsvt.fr\/wp-content\/uploads\/2024\/10\/doc-9.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-73773f90-3ae2-4e6d-9b0a-84781862f9e2\">T\u00e9l\u00e9charger<\/a><\/div>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"has-text-align-center\">Correction<\/p>\n<\/blockquote>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Lot A meurt \/ Lot B survis<\/li>\n\n\n\n<li>Le s\u00e9rum contient des Anticorps<\/li>\n\n\n\n<li>La souris B a re\u00e7u un s\u00e9rum d\u2019un animal gu\u00e9ri du t\u00e9tanos elle a donc re\u00e7u des anticorps contre le t\u00e9tanos c\u2019est ce qui lui a permit de survivre lors du contact avec la maladie<\/li>\n\n\n\n<li>La souris a re\u00e7u un s\u00e9rum d\u2019un animal qui n\u2019a pas \u00e9t\u00e9 gu\u00e9ri du t\u00e9tanos lorsqu\u2019on lui injecte le t\u00e9tanos elle meurt or la seul diff\u00e9rence avec la souris B est l\u2019injection au pr\u00e9alable de la maladie et donc la pr\u00e9sence d\u2019anticorps contre le t\u00e9tanos<\/li>\n\n\n\n<li>Le lot D a re\u00e7u un s\u00e9rum d\u2019un animal gu\u00e9ri du t\u00e9tanos puis on lui injecte la dipht\u00e9rie ce qui la tue.<\/li>\n\n\n\n<li>L\u2019exp\u00e9rience du lot D nous montre que chaque Anticorps est sp\u00e9cifique d\u2019une maladie<\/li>\n\n\n\n<li>L\u2019anticorps va se fixer sur la bact\u00e9rie b<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"506\" src=\"https:\/\/mruizsvt.fr\/wp-content\/uploads\/2024\/10\/Capture-decran-2024-10-08-142102-1024x506.png\" alt=\"\" class=\"wp-image-298\" srcset=\"https:\/\/mruizsvt.fr\/wp-content\/uploads\/2024\/10\/Capture-decran-2024-10-08-142102-1024x506.png 1024w, https:\/\/mruizsvt.fr\/wp-content\/uploads\/2024\/10\/Capture-decran-2024-10-08-142102-300x148.png 300w, https:\/\/mruizsvt.fr\/wp-content\/uploads\/2024\/10\/Capture-decran-2024-10-08-142102-768x380.png 768w, https:\/\/mruizsvt.fr\/wp-content\/uploads\/2024\/10\/Capture-decran-2024-10-08-142102-1536x759.png 1536w, https:\/\/mruizsvt.fr\/wp-content\/uploads\/2024\/10\/Capture-decran-2024-10-08-142102-2048x1012.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"has-text-align-center\">Bilan<\/p>\n<\/blockquote>\n\n\n\n<p class=\"has-accent-3-color has-text-color has-link-color wp-elements-d80cd42a6ca323fd6886c758f52662b8\">Les micro-organismes portent des mol\u00e9cules ou produisent des toxines que l&rsquo;organisme reconna\u00eet comme diff\u00e9rentes des siennes : ce sont des antig\u00e8nes.<\/p>\n\n\n\n<p class=\"has-accent-3-color has-text-color has-link-color wp-elements-c1e7c308151b4e6414cdfcd122778066\">La pr\u00e9sence d&rsquo;antig\u00e8nes dans l&rsquo;organisme d\u00e9clenche la production de mol\u00e9cules particuli\u00e8res par les lymphocytesB :les anticorps.<\/p>\n\n\n\n<p class=\"has-accent-3-color has-text-color has-link-color wp-elements-a9a759929d0121460aa33e12638100a1\">Ces anticorps sont sp\u00e9cifiques d&rsquo;un antig\u00e8ne : ils reconnaissent un type d&rsquo;antig\u00e8ne, s&rsquo;y fixent pour le neutraliser et suppriment ainsi ses effets.<\/p>\n\n\n\n<p class=\"has-accent-3-color has-text-color has-link-color wp-elements-dd43d0661146525e5c5df7354d30128d\">Les anticorps se fixent sur les antig\u00e8nes des bact\u00e9ries, en s&rsquo;agglutinant. Ainsi, les bact\u00e9ries ne peuvent plus agir. On appelle cette agglutination un complexe anticorps\/antig\u00e8ne.<\/p>\n\n\n\n<p class=\"has-accent-3-color has-text-color has-link-color wp-elements-4c2a86a654ccaac44bd2117b837d4be9\">Puis les bact\u00e9ries neutralis\u00e9es sont d\u00e9truites par les phagocytes<strong>.<\/strong><\/p>\n\n\n\n<p class=\"has-accent-3-color has-text-color has-link-color wp-elements-227e08a45352a51e159b3c0f3ef820e7\"><strong><br><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Correction Bilan Les micro-organismes portent des mol\u00e9cules ou produisent des toxines que l&rsquo;organisme reconna\u00eet comme diff\u00e9rentes des siennes : ce sont des antig\u00e8nes. La pr\u00e9sence d&rsquo;antig\u00e8nes dans l&rsquo;organisme d\u00e9clenche la production de mol\u00e9cules particuli\u00e8res par les lymphocytesB :les anticorps. Ces anticorps sont sp\u00e9cifiques d&rsquo;un antig\u00e8ne : ils reconnaissent un type d&rsquo;antig\u00e8ne, s&rsquo;y fixent pour le [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":58,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-294","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mruizsvt.fr\/index.php\/wp-json\/wp\/v2\/pages\/294","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mruizsvt.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mruizsvt.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mruizsvt.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mruizsvt.fr\/index.php\/wp-json\/wp\/v2\/comments?post=294"}],"version-history":[{"count":4,"href":"https:\/\/mruizsvt.fr\/index.php\/wp-json\/wp\/v2\/pages\/294\/revisions"}],"predecessor-version":[{"id":328,"href":"https:\/\/mruizsvt.fr\/index.php\/wp-json\/wp\/v2\/pages\/294\/revisions\/328"}],"up":[{"embeddable":true,"href":"https:\/\/mruizsvt.fr\/index.php\/wp-json\/wp\/v2\/pages\/58"}],"wp:attachment":[{"href":"https:\/\/mruizsvt.fr\/index.php\/wp-json\/wp\/v2\/media?parent=294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}