50.0 MB (12.6 MB compressed)
5073 x 3447 pixels
42.9 x 29.2 cm ⏐ 16.9 x 11.5 in (300dpi)
CNRI / SCIENCE PHOTO LIBRARY CNRI / SCIENCE PHOTO LIBRARY
Mitochondria. Coloured transmission electron micrograph (TEM) of mitochondria (orange) in an adipocyte (fat cell). Mitochondria are a type of organelle found in the cytoplasm of eukaryotic cells. They oxidise sugars and fats to produce energy in a process called respiration. A mitochondrion has two membranes, a smooth outer membrane and a folded inner membrane. The folds of the inner membrane are called cristae, and it is here that the chemical reactions to produce energy take place. Magnification: x20,000 when printed at 10 centimetres wide.
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