JOHN DURHAM / SCIENCE PHOTO LIBRARY JOHN DURHAM / SCIENCE PHOTO LIBRARY
Xylose crystals. Cross-polarised light micrograph of grown crystals of xylose. Xylose is a sugar first found in wood. It is the main building block of hemicellulose xylan, which forms around 30 percent of birch wood, though less in most other plants. Magnification: x19 when printed 10 centimetres wide.
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