Potato starch grains, light micrograph

Potato starch grains, light micrograph

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Caption: Potato starch grains. Light micrograph of a transverse section through a potato tuber (Solanum tuberosum), showing the starch grains. A pale central cross, called the hilum, marks the highest point of a starch grain. Starch is made from sucrose, a sugar formed in the leaves during photosynthesis, which is then transported to the tuber (potato) by the phloem (vascular tissue). It is used as a store of energy for the later development of buds on the surface of the potato. Magnification: x230 when printed at 10 centimetres wide.

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Keywords: anatomical, angiosperm, angiosperms, biological, biology, botanical, botany, cell, cells, cellular, close-up, cross-section, detail, dicot, dicotyledon, energy reserve, flora, grain, grains, hilum, internal structure, light micrograph, light microscope, nature, part, parts, plant, plant anatomy, potato, section, sectioned, solanum tuberosum, starch, stored, structural, sugar, tissue, transverse

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