下载此文档

The Land Plants Adaptation for Terrestrial life为适应陆地生活的陆生植物.ppt

文档分类：医学/心理学 | 页数：约22页举报非法文档有奖

1/22

下载提示

1.该资料是网友上传的，本站提供全文预览，预览什么样，下载就什么样。
2.下载该文档所得收入归上传者、原创者。
3.下载的文档，不会出现我们的网址水印。

同意并开始全文预览

(约 1-6 秒)

1/22 下载此文档

文档列表 文档介绍

TheLandPlants:AdaptationforTerrestriallifeAnnouncementsTherewillbeaquiznextlabperiodAssigmentforthislabincludepage113,114,115,116,117,118ThisLabLandplantsMossesFernsConifersAngiospermsDissectingCassiaandLilyLandplantsFernsmossesConifersangiospermsGreenalgeaTerrestrialEmbryo(youngdormantsporophyte)DominantsporophyteVascularsystemwithtracheidsseedsSecondarygrowthFlowersVascularplantsSeedplantsLandplants*Plantsphotosyntheticeukaryotesthatuseschlorophylls,storecarbohydrates,usuallyasstarch,anddevelopfromembryoprotectedbytissuesoftheparentplant(embryophytes).*anismmitosisgameteszygotesyngamymeiosissporesmitosissporophytegametophyteLandplants*12phylaexistnontracheophytes(nonvascularorbryophytes)1-Thepersistentgenerationisthegametophyte(dominant)2-Sporophytesareveryshort-lived,areattachedtoandnutritionallydependentontheirgametophytesandconsistofonlyanunbranchedstalk,orseta,andasingle,terminalsporangium3-bryophytesneverformxylemtissue,thespeciallignin-containing,water-conductingtissuethatisfoundinthesporophytesofallvascularplantsNontracheophytes1-Mosses*hydroidsforwaterandleptoidsfornutrient*dependanceonwaterforsexualreproduction*Antheridia(spermproducingstructures)andArchegonia(eggproducingstructures)attheapexofgametophyte*calyptraistheenlagedarchegoniumcontainingthezygot*posedoffoot,stalk(seta)andsporangium(sporescontainingcapsule)*germinatingsporegrowintoyounggametophyte(protonema)MossesNontrcheophytes2-Hornworts3-liverworts

The Land Plants Adaptation for Terrestrial life为适应陆地生活的陆生植物来自淘豆网www.taodocs.com转载请标明出处.