Original Research

Physiology and pathophysiology of cell organelles

J. J. Theron, N. Claasen, N. Lizamore
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie | Vol 17, No 1 | a686 | DOI: https://doi.org/10.4102/satnt.v17i1.686 | © 1998 J. J. Theron, N. Claasen, N. Lizamore | This work is licensed under CC Attribution 4.0
Submitted: 11 July 1998 | Published: 11 July 1998

About the author(s)

J. J. Theron,, South Africa
N. Claasen,, South Africa
N. Lizamore,, South Africa

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Abstract

Mitochondria are found in all eucaryotic cells except mature red blood cells. The structural components of these organelles are briefly described. The primary function of mitochondria, i.e. transduction of energy with formation of ATP through a process of oxidative phosphorylation (OXPHOS) occurs in six protein complexes arranged in sequence on the mitochondrial cristae formed by infoldings of the internal membrane. Mitochondrial DNA and ribosomes are found in mitochondria and protein synthesis can therefore occur in these organelles. However, most mitochondrial proteins and practically all lipids are imported from the cytoplasm.

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