ANTONIO ROMERO / SCIENCE PHOTO LIBRARY ANTONIO ROMERO / SCIENCE PHOTO LIBRARY
Glucose crystals. Polarized light micrograph of crystals of glucose. Also called dextrose, this monosaccharide carbohydrate is a primary energy source in most organisms. Found in the blood in humans, it is stored as starch in plants and as glycogen in animals. Field of view size: 0.15 x 0.22 millimetres.
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