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'''Mitochondria''' (singular: '''mitochondrion'''), are rod-shaped [[organelle]]s that are responsible for the lions share of energy metabolism within a cell, converting [[oxygen]] and nutrients into Carbon dioxide and water and synthesizing [[adenosine triphosphate|ATP]] in the process. ATP is the chemical energy "currency" of the cell that powers the cell's metabolic activities. This process is called [[aerobic respiration]] and is the reason animals breathe oxygen.

A '''mitochondrion''' (plural: '''Mitochondria''') is a rod-shaped [[organelle]] that is responsible for the majority of energy metabolism within cells, converting [[oxygen]] and nutrients into [[carbon dioxide]] and water and synthesizing [[adenosine triphosphate|ATP]] in the process. ATP is the chemical energy "currency" of the cell that powers the cell's metabolic activities. This process of production is called [[aerobic respiration]] and is the reason animals breathe oxygen.

   

   

The number of mitochondria present in a [[cell]] depends upon the metabolic requirements of that [[cell]], and may range from a single large mitochondrion to thousands of the [[organelle]]s. Mitochondria, which are found in nearly all [[eukaryote]]s, including plants, animals, fungi, and protists, are large enough to be observed with a light microscope and were first discovered in the 1800s.  

The number of mitochondria present in a [[cell]] depends upon the metabolic requirements of that [[cell]], and may range from a single large mitochondrion to thousands of the [[organelle]]s. Mitochondria, which are found in nearly all [[eukaryote]]s, including plants, animals, fungi, and protists, are large enough to be observed with a light microscope and were first discovered in the 1800s.