Collenchyma plant cells, light micrograph

Collenchyma plant cells, light micrograph

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Collenchyma plant cells. Light micrograph of a transverse section through collenchyma tissue in the outer stem of a common nettle (Urtica dioica). The collenchyma cell walls are thickened with cellulose (red-orange) so that the center (lumen) of the cell is circular, as seen in this cross-section. The cavity (lumen) contains protoplasm and sometimes structures called chloroplasts. Collenchyma gives support and elasticity to the growing stem, when it is still elongating. Magnification: x100 when printed at 10 centimetres high.

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Keywords: anatomical, biological, biology, botanical, botany, cell, cells, cellular, close-up, collenchyma, cross-section, detail, flora, internal structure, light micrograph, light microscope, lm, nature, part, parts, plant, plant anatomy, section, sectioned, structural, tissue, transverse

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