65.9 MB (2.1 MB compressed)
4800 x 4800 pixels
40.6 x 40.6 cm ⏐ 16.0 x 16.0 in (300dpi)
POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Red blood cell, coloured scanning electron micrograph (SEM). Red blood cells (erythrocytes) are carriers of oxygen and carbon dioxide. Their biconcave surface provides maximum surface area for the exchange of gases. Magnification: x12400 when printed 10 centimetres wide.
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