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Folhas no chao

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Folhas sao orgaos das plantas especializados na captacao de luz e trocas gasosas com a atmosfera para realizar a fotossintese e respiracao. Salvo raras excepcoes, associadas a plantas de climas aridos, as folhas tendem a maximizar a superficie em relacao ao volume, de modo a aumentar tanto a area da planta exposta a luz, quanto a area da planta onde as trocas gasosas sao possiveis por estar exposta a atmosfera./ Leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Typically a leaf is a thin, flattened organ borne above ground and specialized for photosynthesis, but many types of leaves are adapted in ways almost unrecognisable in those terms: some are not flat (for example many succulent leaves and conifers), some are not above ground (such as bulb scales), and some are without major photosynthetic function (consider for example cataphylls, spines, and cotyledons).

Filename
20080220-DSC_5182.jpg
Copyright
Paula Marina / Argosfoto
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4288x2848 / 5.3MB
http://www.argosfoto.com.br
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Folhas sao orgaos das plantas especializados na captacao de luz e trocas gasosas com a atmosfera para realizar a fotossintese e respiracao. Salvo raras excepcoes, associadas a plantas de climas aridos, as folhas tendem a maximizar a superficie em relacao ao volume, de modo a aumentar tanto a area da planta exposta a luz, quanto a area da planta onde as trocas gasosas sao possiveis por estar exposta a atmosfera./ Leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Typically a leaf is a thin, flattened organ borne above ground and specialized for photosynthesis, but many types of leaves are adapted in ways almost unrecognisable in those terms: some are not flat (for example many succulent leaves and conifers), some are not above ground (such as bulb scales), and some are without major photosynthetic function (consider for example cataphylls, spines, and cotyledons).