{"id":1146,"date":"2026-03-30T13:33:29","date_gmt":"2026-03-30T12:33:29","guid":{"rendered":"https:\/\/onactin.eu\/?post_type=educator-resources&p=1146"},"modified":"2026-03-30T13:33:29","modified_gmt":"2026-03-30T12:33:29","slug":"comment-vivent-les-plantes","status":"publish","type":"educator-resources","link":"https:\/\/onactin.eu\/fr\/educator-resources\/comment-vivent-les-plantes\/","title":{"rendered":"Les plantes vivent de plusieurs mani\u00e8res pour survivre et se reproduire. Elles sont capables de produire leur propre nourriture gr\u00e2ce \u00e0 la photosynth\u00e8se, un processus o\u00f9 elles utilisent la lumi\u00e8re du soleil, le dioxyde de carbone de l'air et l'eau du sol pour cr\u00e9er des sucres (leur nourriture) et de l'oxyg\u00e8ne.\n\nVoici les principaux aspects de leur vie :\n\n* **Photosynth\u00e8se :** C'est le processus fondamental. Les feuilles contiennent de la chlorophylle, un pigment qui capte l'\u00e9nergie lumineuse. Cette \u00e9nergie est utilis\u00e9e pour convertir l'eau et le dioxyde de carbone en glucose (sucre) et en oxyg\u00e8ne.\n* **Respiration :** Comme les animaux, les plantes respirent. Elles absorbent de l'oxyg\u00e8ne et rejettent du dioxyde de carbone, surtout la nuit, pour convertir les sucres en \u00e9nergie utilisable pour leurs fonctions vitales.\n* **Absorption d'eau et de nutriments :** Les racines ancrent la plante dans le sol et absorbent l'eau et les min\u00e9raux essentiels \u00e0 sa croissance.\n* **Croissance :** Les plantes grandissent continuellement, d\u00e9veloppant de nouvelles feuilles, des tiges, des fleurs et des racines. Cette croissance d\u00e9pend de l'\u00e9nergie produite par la photosynth\u00e8se et de la disponibilit\u00e9 des nutriments.\n* **Reproduction :** La plupart des plantes se reproduisent de mani\u00e8re sexu\u00e9e, par la production de fleurs, qui portent des organes reproducteurs m\u00e2les (pollen) et femelles (ovules). La pollinisation (transfert du pollen) et la f\u00e9condation m\u00e8nent \u00e0 la formation de graines, qui contiendront de nouvelles plantes. Certaines plantes peuvent aussi se reproduire de mani\u00e8re asexu\u00e9e (v\u00e9g\u00e9tative), par exemple \u00e0 partir de boutures ou de stolons.\n* **R\u00e9action \u00e0 l'environnement :** Les plantes r\u00e9agissent aux stimuli de leur environnement. Elles peuvent orienter leurs feuilles vers la lumi\u00e8re (phototropisme), leurs racines vers l'eau (hydrotropisme), ou r\u00e9agir au toucher (thigmotropisme). Elles ont \u00e9galement des cycles saisonniers, comme la floraison ou la chute des feuilles.\n* **Transport :** Les plantes poss\u00e8dent des tissus sp\u00e9cialis\u00e9s (xyl\u00e8me et phlo\u00e8me) pour transporter l'eau et les nutriments des racines vers les feuilles, et les sucres (nourriture) des feuilles vers le reste de la plante.\n\nEn r\u00e9sum\u00e9, la vie des plantes est un cycle continu de production d'\u00e9nergie, d'absorption, de croissance et de reproduction, le tout en interaction avec leur environnement."},"excerpt":{"rendered":"

Dans cette s\u00e9ance les \u00e9l\u00e8ves vont d\u00e9couvrir les diff\u00e9rentes parties d\u2019une plante et comprendre que les plantes sont vivantes. Ils apprendront le lexique et des structures grammaticales (verbes au present) pour d\u00e9crire une plante.<\/p>","protected":false},"featured_media":1150,"template":"","age":[74],"proficiency_level":[30,31],"download_language":[70],"language_area":[78],"subject":[92,93],"class_list":["post-1146","educator-resources","type-educator-resources","status-publish","has-post-thumbnail","hentry","age-6-9","proficiency_level-a1","proficiency_level-a2","download_language-french","language_area-vocabulary","subject-biology","subject-environmental-studies"],"acf":[],"yoast_head":"\nComment vivent les plantes? - OnActin Resources<\/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:\/\/onactin.eu\/fr\/ressources-pour-les-educateurs\/comment-vivent-les-plantes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comment vivent les plantes? - OnActin Resources\" \/>\n<meta property=\"og:description\" content=\"Dans cette s\u00e9ance les \u00e9l\u00e8ves vont d\u00e9couvrir les diff\u00e9rentes parties d\u2019une plante et comprendre que les plantes sont vivantes. 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