Mitochondria reside, sometimes by the hundreds, inside each of our cells. They respire the oxygen that keeps alive the cells of all animals, plants, fungi and most protoctists.
Mitochondria look like the free-living symbiotic bacteria from which they came. They do their own thing: they have their own private DNA and they grow and divide on their own inside each cell. Fortunately for all oxygen-breathing organisms, mitochondria cannot abandon us as they can no longer live outside of our cells.
Have you ever thought of yourself as akin to a mitochondria, living within the protective cell of our Earth? What part do we play in this symbiotic planet?
University of Montana--Missoula. Environmental Studies Program
© 1997 Stiftung Drittes Millennium
Digital File Format
Digital Image Number
Liebes, Sid; Mittelstadt, Laurie; Waugh, Barbara; and Brynes, Lois, "Panel 37: Thriving In The Oxygen World: The Mighty Mitochondria" (1997). A Walk Through Time - From Stardust To Us. 37.