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From Wikipedia, the free encyclopedia

Types of plant tissue

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  • Dermal tissue - forms the boundary between the plant and the external world
    • epedermis - single layered group of cells covering a plant, especially the leaf and young tissues of a vascular plant, including stems and roots. It protects against water loss, regulates gas exchange, secretes metabolic compounds, and (especially in roots) absorps water and mineral nutrients.
    • cork - external, secondary tissue impermeable to water and gases.
    • periderm - secondary covering
  • Vascular tissue - conducts fluids and nutrients internally
    • xylem - primary water-conducting tissue
    • phloem - the living tissue that carries sugar and organic nutrients throughout the plant
  • Ground tissue - manufactures nutrients by photosynthesis and stores reserve nutrients
    • parenchyma - forms the cortex and pith of stems, the cortex of roots, the mesophyll, the pulp of fruits, the endosperm of seeds, and the photosynthetic areas of a leaf
    • collenchyma
    • sclerenchyma
  • Meristematic tissue - a tissue in plants consisting of undifferentiated cells and found in zones of the plant where growth can take place — the roots and shoots

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