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Sumario Tejidos Vegetales

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Esquema Tejidos Vegetales

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  • February 22, 2023
  • 2
  • 2022/2023
  • Summary
  • Secondary school
  • Bachillerato
  • 1
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Tipo Ubicación Características Función

Tejidos embrionarios o meristemos En los extremos de raíces y tallos Cells alargadas con citoplasma denso y núcleos -Intervienen en el crecimiento de la
grandes planta y da solides al cuerpo vegetativo
Primarios (longitud) -No tienen plastos -Dan lugar a los ≠ tipos de plantas
Secundarios (grosor) -Se reproducen por mitosis
Cambium vas conductores
Felógeno súber o corcho
Constituyen la mayor parte de la planta -Formado por cells vivas que conservan su Tienen la capacidad de hacer la
(semillas, hojas frutos) capacidad de división fotosíntesis, respirar almacenar
-Cells esféricas o cubicas y especializadas sustancias
-Parénquima clorofílico (empalizada o lagunar)
Parénquimas
Par Acuífero almacenar agua
Par Aerífero almacenar aire
Par de reserva almacenar sus de reserva
Tejidos esqueléticos o de sostén En el esqueleto de la planta -Son tejidos duros -Mantienen erguida las plantas
-Sus cells son de paredes gruesas con -Permite el crecimiento en grosor
-Colénquima Cells vivas abundancia de celulosa (esclerénquima)
-Esclerénquima Cells muertas

Tejidos protectores Recubre todas las partes externas del Compuesto por una capa de cells fuertemente -Cubre y protege la parte exterior de la
vegetal unidas y carece de espacios intercelulares planta del desgaste mecánico y la
Epidérmico Cells vivas invasión de parásitos
Suberoso Cells muertas -Sus cells carecen de cloroplastos -Separa los tejidos internos de la planta
-Presentan las siguientes capas: epidermis,
exodermis, endodermis y súber
En tejido epidérmico estomas
En tejido suberoso lenticelas


Cells ostiolo
oclusivas

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