Length3 millionths m
1.6 millionthsStep ladder heights
10,909Water molecules
1-10 micrometers, typically 3
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The powerhouse of the cell (yes, really)/Medicine & Biology
A mitochondrion is a tiny organelle about 1-10 micrometers long that generates most of the cell's ATP, the molecular fuel of life. Each human cell contains hundreds to thousands of mitochondria, and they have their own DNA, which is inherited exclusively from your mother. They are thought to have once been free-living bacteria that were engulfed by an ancestor of modern cells about 2 billion years ago.
1-10 micrometers, typically 3
About 0.5 micrometers
16,569 base pairs
About 0.5 picograms
About 100 ATP/s, each worth 5e-20 J