A Folha
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Transcript of A Folha
![Page 2: A Folha](https://reader037.fdocumentos.tips/reader037/viewer/2022102901/55709f53d8b42a5d288b46ee/html5/thumbnails/2.jpg)
Introdução
• Apêndices caulinares presentes em quase todos os vegetais superiores
• Órgão vegetal especializado para– Fotossíntese– Trocas gasosas– Transpiração
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Origem e Anatomia
• Gemas apicais– Primórdios
foliares• Anatomia
– Sistema dérmico• Epiderme
– Sistema fundamental• Mesofilo
– Sistema vascular• Xilema• Floema
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MORFOLOGIAA Folha
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Folha Completa
Bainha
Pecíolo
Limbo
Estípulas
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Conexão ao Caule
Folha peciolada Folha invaginante
Folha séssil
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Limbo
Folha simples Folha composta
![Page 8: A Folha](https://reader037.fdocumentos.tips/reader037/viewer/2022102901/55709f53d8b42a5d288b46ee/html5/thumbnails/8.jpg)
Limbo
Trevo (angiosperma)Marsilea (pteridófita)
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LimboErvilha (Pisum sativum) Cacto
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ANATOMIAA Folha
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Anatomia da Folha
Epiderme adaxial
Epiderme abaxial
Mesofilo
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Epiderme
CélulasEpidérmicas
Estômato
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Estômatos
Células-guarda
Células anexas
Ostíolo
Câmara subestomática
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Estômatos
Nerium oleander Criptas estomáticas
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Mesofilo
CammeliaFolha bifacial ou dorsiventral
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Mesofilo
EucaliptusFolha bilateral ou isolateral
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Feixes vasculares
Hydrangea Nervuras reticuladas
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Feixes vasculares
Tulipa Nervuras paralelas
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Feixes vasculares
Gutação Hidatódio
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FOLHA E AMBIENTEA Folha
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Folhas Xeromórficas
• Cutícula espessa• Hipoestomática• Predominância do
par. clorofiliano paliçádico
• Maior densidade do sistema vascular
• Esclerênquima abundante
• Hipoderme presente
• Redução do tamanho das folhas
• Aumento do número de estômatos
• Grande número de tricomas
![Page 22: A Folha](https://reader037.fdocumentos.tips/reader037/viewer/2022102901/55709f53d8b42a5d288b46ee/html5/thumbnails/22.jpg)
Plantas Xerófitas
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Plantas Mesófitas
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Plantas Higrófitas
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Plantas Hidrófitas
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