{"id":115034,"date":"2026-09-24T12:50:33","date_gmt":"2026-09-24T11:50:33","guid":{"rendered":"https:\/\/www.dstenerife.eu\/?p=115034"},"modified":"2026-09-24T12:50:33","modified_gmt":"2026-09-24T11:50:33","slug":"klasse-11-untersucht-blattfarbstoffe","status":"publish","type":"post","link":"https:\/\/www.dstenerife.eu\/de\/klasse-11-untersucht-blattfarbstoffe\/","title":{"rendered":"Klasse 11 untersucht Blattfarbstoffe"},"content":{"rendered":"<p>Was steckt eigentlich hinter dem satten Gr\u00fcn eines Blattes? Dieser Frage ist die Klasse 11 im Biologieunterricht mit einer D\u00fcnnschichtchromatographie auf den Grund gegangen. Als Untersuchungsobjekt diente die Kapuzinerkresse, deren Bl\u00e4tter zun\u00e4chst zerkleinert und mit einem L\u00f6sungsmittel extrahiert wurden, um die enthaltenen Farbstoffe herauszul\u00f6sen.<\/p>\n<p>Der gr\u00fcne Blattextrakt wurde anschlie\u00dfend mit Hilfe einer D\u00fcnnschichtplatte in seine Farbstoffe aufgetrennt. Dabei zeigte sich: Gr\u00fcn ist nicht einfach nur gr\u00fcn! Je nach Polarit\u00e4t und L\u00f6slichkeit wanderten die einzelnen Farbstoffe \u2013 Chlorophyll a, Chlorophyll b sowie gelb-orange Carotinoide und Xanthophylle \u2013 unterschiedlich schnell die Platte hinauf und trennten sich in deutlich erkennbare, farbige Banden auf.<\/p>\n<p>So konnten die Sch\u00fclerinnen und Sch\u00fcler live miterleben, wie ein scheinbar einfarbiges Blatt in Wirklichkeit ein ganzes Farbstoffgemisch verbirgt, das der Pflanze bei der Absorption des Lichts f\u00fcr die Fotosynthese hilft.<\/p>\n<div  id=\"jtg-115019\" class=\"modula modula-gallery modula-columns\" data-config=\"{&quot;tabletHeight&quot;:800,&quot;mobileHeight&quot;:800,&quot;desktopHeight&quot;:800,&quot;enableTwitter&quot;:false,&quot;enableWhatsapp&quot;:false,&quot;enableFacebook&quot;:false,&quot;enablePinterest&quot;:false,&quot;enableLinkedin&quot;:false,&quot;enableEmail&quot;:false,&quot;randomFactor&quot;:0.5,&quot;type&quot;:&quot;grid&quot;,&quot;columns&quot;:12,&quot;gutter&quot;:10,&quot;mobileGutter&quot;:10,&quot;tabletGutter&quot;:10,&quot;desktopGutter&quot;:10,&quot;enableResponsive&quot;:true,&quot;tabletColumns&quot;:2,&quot;mobileColumns&quot;:1,&quot;lazyLoad&quot;:0,&quot;lightboxOpts&quot;:{&quot;animated&quot;:true,&quot;Thumbs&quot;:{&quot;type&quot;:&quot;modern&quot;,&quot;showOnStart&quot;:false,&quot;position&quot;:&quot;bottom&quot;},&quot;Toolbar&quot;:{&quot;display&quot;:{&quot;right&quot;:[&quot;close&quot;],&quot;left&quot;:[&quot;infobar&quot;]},&quot;enabled&quot;:true},&quot;Carousel&quot;:{&quot;Panzoom&quot;:{&quot;touch&quot;:true},&quot;infinite&quot;:false,&quot;transition&quot;:&quot;fade&quot;},&quot;keyboard&quot;:{&quot;Escape&quot;:&quot;close&quot;,&quot;Delete&quot;:&quot;close&quot;,&quot;Backspace&quot;:&quot;close&quot;,&quot;PageUp&quot;:&quot;next&quot;,&quot;PageDown&quot;:&quot;prev&quot;,&quot;ArrowUp&quot;:&quot;prev&quot;,&quot;ArrowDown&quot;:&quot;next&quot;,&quot;ArrowRight&quot;:&quot;next&quot;,&quot;ArrowLeft&quot;:&quot;prev&quot;},&quot;wheel&quot;:&quot;slide&quot;,&quot;touch&quot;:true,&quot;backdropClick&quot;:&quot;close&quot;,&quot;l10n&quot;:{&quot;CLOSE&quot;:&quot;Schlie\\u00dfen&quot;,&quot;NEXT&quot;:&quot;Weiter&quot;,&quot;PREV&quot;:&quot;Zur\\u00fcck&quot;,&quot;Error&quot;:&quot;Der angeforderte Inhalt kann nicht geladen werden. 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