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Hojas

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Tema: Observación y clasificación de hojas vegetales. Objetivos: Observar preparados de hojas con microscopio óptico. Registrar observaciones mediante fotos y dibujos. Clasificar los distintos tipos de hojas y reconocer sus estructuras. Materiales: Microscopio óptico, bisturí y diversas muestras vegetales (areca, aloe, lirio leopardo, begonia, ombú, ligustro, etc.). Preparados analizados: Hojas de ficus, eucalipto, avena y pecíolo de ombú, aumentadas a 40x. Marco teórico: Clasificación de hojas según su forma, pecíolo, limbo, borde y nervadura (por ejemplo: elípticas, aciculares, pecioladas, simples, dentadas, penninervias, etc.). Funciones fisiológicas de las hojas: fotosíntesis, respiración, transpiración y gutación. Conclusión: Se cumplieron los objetivos mediante la observación detallada y el reconocimiento de los distintos tipos de hojas y sus estructuras.

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Práctico n°6 Agronomía




Hojas
Introducción:
La gémula es una parte fundamental del embrión de las plantas, desempeñando un papel
crucial en el desarrollo inicial del tallo y las hojas. Al germinar, la gémula da origen a las
primeras hojas verdaderas de la planta, estableciendo la estructura que permitirá su
crecimiento y capacidad de fotosíntesis.


Objetivos:
​ Observar distintos preparados en el microscopio óptico y microscópicamente.
​ Registrar con fotos y dibujarlos.
​ Clasificar los distintos tipos de hojas según los criterios establecidos.
​ Reconocer estructuras.




Materiales: Material orgánico:
●​ Microscopio Óptico. ●​ Areca
●​ Bisturí ●​ Aloe
●​ Lirio leopardo
●​ Begonia
●​ Lazo de amor
●​ Singonio
●​ Ombú
●​ Ligustro
●​ Lapacho
●​ Anacahuita

Preparados:
■​ Hoja de Ficus 21L
■​ Hojas de Eucaliptos 2C
■​ Peciolo de Ombu 40C
■​ Hoja de Avena 19L

, Observaciones:
○​ Areca




○​ Aloe




○​ Lirio leopardo




○​ Begonia

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