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jjjjjjjjjjjjjjjjjInstituto Tecnológico de Chetumal
Lic. Biología

Botánica 1

Practica 5
Estructura y función del esclerenquima

Profesora:Rosa Inés Aguilar amar

Integrantes:
García Ojeda Gladys Andrea
Mendez Poot Ruben Alfredo
Tamay Heredia Gilberto Geovany
Villarreal Mukul Irvin Arcenis
Chetumal Quintana Roo 18 de noviermbre 2010Introducción:
El parénquima es el principal representante de los tejidos permanentes y esta ampliamente distribuido en el cuerpo vegetal. Puede estar localizado en la corteza y medula del tallo,corteza corteza de la raíz, mesófilo de la hoja y en tejidos complejos xilema y floema.
Las células del parénquima son vivas y sus funciones están en relación con su posición en el cuerpo de laplanta y a su participación en la actividad de otras células.
Así, las funciones que pueden asumir son: actividad, fotosintética, de almacenamiento de substancias, de cicatrización de heridas yformación de estructuras como raíces de adventicias y brotes.
Objetivo:
Poder distinguir los diferentes tipos de parénquima así como la posición que ocupa este tejido en los diferentes órganos de la planta.Material:
Microscopio
Portaobjetos
Cubreobjetos
Gotero
Navaja
Agujas
Pinza de disección
Tallo de una planta herbácea
Hoja de ficus elástica (árbol del hule)
Peciolo de la hoja deCanna indica (platanillo)
Hoja de lilium sp. (Lirio)
Peciolo de la hoja de arácea (malanga).

Metodología:
1.- Hacer cortes transversales de tallo de la planta herbáceas y observar al microscopio,...