Parenchyma: Cells are loosely packed together, Thin primary cell wall, isodiametric or elongated cells, gaseous exchange., Contain chloroplast for photosynthesis, Collenchyma: Polygon-shaped and elongated., very small or no intercellular spaces, unevenly thickened primary cell wall, thickenings occur at the corners of the cell walls, Giving mechanical strength and flexibility., provide flexible support for the herbaceous plants, Sclerenchyma: primary and secondary cell wall., (secondary) cell wall containing lignin., Cell walls are evenly thickened., cells usually die after maturity., Cells have no protoplasm with narrow empty lumen., no intercellular air space, provide mechanical strength and rigidity to support the plants,

Ground Tissues

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Innebygd

Ledertavle

Visuell stil

Alternativer

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