Light micrograph of hydrolysed starch granules from a potato, Solanum tuberosum. Starch is a polysaccharide which occurrs widely in plants as a carbohydrate energy reserve (the tubers of the potato plant are specially adapted for its storage). Consequently, starch is also important as an energy source for animals. On digestion it ultimately yields glucose. Phase contrast. Magnification: x100 at 35mm size.
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