Mitochondria are organelles in the cells of most eukaryotic organisms. They range in size from 0.5 to 1.0 micrometers and are typically spherical or ovoid.

Mitochondria are sometimes described as "powerhouses" or "energy factories" because they generate most of the cell's supply of adenosine triphosphate (ATP), used as a source of chemical energy.

In addition to supplying cellular energy, mitochondria are involved in other tasks, such as signaling, cellular differentiation, and cell death, as well as maintaining control of the cell cycle and cell growth.

Additionally, mitochondria are involved in calcium homeostasis, and they can release calcium into the cytosol in order to help maintain a healthy concentration gradient.

Finally, mitochondria are also thought to play a role in cell death. This is known as apoptosis, and it is a process that is important for the development and maintenance of healthy tissue.

Mitochondria are fascinating organelles that play a vital role in the function of all eukaryotic cells. Without mitochondria, our cells would not be able to produce the energy that they need to function properly.

Mitochondria are involved in a number of important cellular processes, making them truly essential for the health and well-being of our cells.

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