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Mitochondrion

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Mitochondrion

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.

Measurements

Length3 millionths m
1.6 millionthsStep ladder heights
10,909Water molecules

1-10 micrometers, typically 3

Diameter500 billionths m
3.3 trillionthsBig Island lengths
893 billionthsHead circumferences
50,000Hard X-ray wavelengths

About 0.5 micrometers

Mitochondrial DNA16,569 B
16.6 trillionthsServer racks
828GPS coordinates

16,569 base pairs

Mass of single mitochondrion500 quintillionths kg
1.2 sextillionthsEmpty Boeing 747s
621 octillionthsGolden Gate Bridge masses
735 sextillionthsDairy cows

About 0.5 picograms

ATP molecules produced per second15 quintillionths J
5.6 septillionthsCar batteries
30 septillionthsCar crashes
25UV photons

About 100 ATP/s, each worth 5e-20 J

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