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33.0 MB (3.3 MB compressed)
2798 x 4117 pixels
23.6 x 34.8 cm ⏐ 9.3 x 13.7 in (300dpi)
PROFESSORS P. MOTTA & T. NAGURO / SCIENCE PHOTO LIBRARY PROFESSORS P. MOTTA & T. NAGURO / SCIENCE PHOTO LIBRARY
Liver cell. Coloured high resolution scanning electron micrograph of a liver cell (hepatocyte). Coloured pink is the nucleus with its chromatin fibres (spongy). The chromatin contains the chromosomes which hold the genetic instructions. Mitochondria (green, saw-toothed) are the sites of energy production. The high number here indicate a metabolically active cell. The stacked membranes (yellow) are endoplasmic reticulum (ER). On some ER ribosomes give the membranes a granular appearance. This "rough" ER is involved in protein synthesis. ER (without ribosomes) is involved in fat metabolism. Magnification in the region of x11,500 when printed 10cm high.
Model release not required. Property release not required.