{"id":1907,"date":"2023-10-13T16:00:06","date_gmt":"2023-10-13T14:00:06","guid":{"rendered":"https:\/\/svt-dalaine.fr\/svt\/?page_id=1907"},"modified":"2025-10-14T09:36:44","modified_gmt":"2025-10-14T07:36:44","slug":"sv-d-2-2-oses","status":"publish","type":"page","link":"https:\/\/svt-dalaine.fr\/svt\/sv-d-2-2-oses\/","title":{"rendered":"SV-D-2-2 Oses"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1907\" class=\"elementor elementor-1907\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5c47aed elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5c47aed\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d75c116\" data-id=\"d75c116\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-378ee70 elementor-widget elementor-widget-image\" data-id=\"378ee70\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"119\" height=\"138\" src=\"https:\/\/svt-dalaine.fr\/svt\/wp-content\/uploads\/2023\/10\/amyloplaste.jpg\" class=\"attachment-large size-large wp-image-1913\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3b327f9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3b327f9\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-68fd808\" data-id=\"68fd808\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7566fd1 elementor-widget elementor-widget-text-editor\" data-id=\"7566fd1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Extrait du B.O.<\/p><p>Les oses sont des polyalcools, poss\u00e9dant un groupement carbonyle qui est soit une fonction ald\u00e9hyde (aldose), soit une fonction c\u00e9tone (c\u00e9tose).<\/p><p>Les pentoses et les hexoses forment des cycles. Cette cyclisation est \u00e0 l\u2019origine de st\u00e9r\u00e9oisom\u00e8res \u03b1 et \u03b2. Les oses peuvent s\u2019associer par liaison osidique.<\/p><p>Les macromol\u00e9cules glucidiques sont des polym\u00e8res d\u2019oses ou de leurs d\u00e9riv\u00e9s, le plus souvent monotones. Selon leur taille, leur solubilit\u00e9, leur activit\u00e9 osmotique et leur structure tridimensionnelle, elles forment de grands \u00e9difices \u00e0 r\u00f4le de r\u00e9serve (amidon et glycog\u00e8ne) ou de structure (cellulose, chitine, pectines et GAG). Elles peuvent s\u2019associer \u00e0 d\u2019autres mol\u00e9cules organiques.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Extrait du B.O. Les oses sont des polyalcools, poss\u00e9dant un groupement carbonyle qui est soit une fonction ald\u00e9hyde (aldose), soit une fonction c\u00e9tone (c\u00e9tose). Les pentoses et les hexoses forment des cycles. Cette cyclisation est \u00e0 l\u2019origine de st\u00e9r\u00e9oisom\u00e8res \u03b1&hellip;&nbsp;<a href=\"https:\/\/svt-dalaine.fr\/svt\/sv-d-2-2-oses\/\" class=\"more-link\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[84],"tags":[],"class_list":["post-1907","page","type-page","status-publish","hentry","category-sv-d-molecule"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.9.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SV-D-2-2 Oses - Bienvenue sur le site de Sciences de la Vie et de la Terre<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/svt-dalaine.fr\/svt\/sv-d-2-2-oses\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SV-D-2-2 Oses - Bienvenue sur le site de Sciences de la Vie et de la Terre\" \/>\n<meta property=\"og:description\" content=\"Extrait du B.O. Les oses sont des polyalcools, poss\u00e9dant un groupement carbonyle qui est soit une fonction ald\u00e9hyde (aldose), soit une fonction c\u00e9tone (c\u00e9tose). Les pentoses et les hexoses forment des cycles. Cette cyclisation est \u00e0 l\u2019origine de st\u00e9r\u00e9oisom\u00e8res \u03b1&hellip;&nbsp;Lire la suite\" \/>\n<meta property=\"og:url\" content=\"https:\/\/svt-dalaine.fr\/svt\/sv-d-2-2-oses\/\" \/>\n<meta property=\"og:site_name\" content=\"Bienvenue sur le site de Sciences de la Vie et de la Terre\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-14T07:36:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/svt-dalaine.fr\/svt\/wp-content\/uploads\/2023\/10\/amyloplaste.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/svt-dalaine.fr\/svt\/sv-d-2-2-oses\/\",\"url\":\"https:\/\/svt-dalaine.fr\/svt\/sv-d-2-2-oses\/\",\"name\":\"SV-D-2-2 Oses - Bienvenue sur le site de Sciences de la Vie et de la Terre\",\"isPartOf\":{\"@id\":\"https:\/\/svt-dalaine.fr\/svt\/#website\"},\"datePublished\":\"2023-10-13T14:00:06+00:00\",\"dateModified\":\"2025-10-14T07:36:44+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/svt-dalaine.fr\/svt\/sv-d-2-2-oses\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/svt-dalaine.fr\/svt\/sv-d-2-2-oses\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/svt-dalaine.fr\/svt\/sv-d-2-2-oses\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/svt-dalaine.fr\/svt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"SV-D-2-2 Oses\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/svt-dalaine.fr\/svt\/#website\",\"url\":\"https:\/\/svt-dalaine.fr\/svt\/\",\"name\":\"Bienvenue sur le site de Sciences de la Vie et de la Terre\",\"description\":\"Ressources en SVT de St\u00e9phanie Dalaine, professeure agr\u00e9g\u00e9e exer\u00e7ant en BCPST1 ENCPB\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/svt-dalaine.fr\/svt\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"SV-D-2-2 Oses - Bienvenue sur le site de Sciences de la Vie et de la Terre","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/svt-dalaine.fr\/svt\/sv-d-2-2-oses\/","og_locale":"fr_FR","og_type":"article","og_title":"SV-D-2-2 Oses - Bienvenue sur le site de Sciences de la Vie et de la Terre","og_description":"Extrait du B.O. Les oses sont des polyalcools, poss\u00e9dant un groupement carbonyle qui est soit une fonction ald\u00e9hyde (aldose), soit une fonction c\u00e9tone (c\u00e9tose). Les pentoses et les hexoses forment des cycles. 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