Mitochondria are defined as a spherical or rod-shaped organelle found in the cytoplasm of eukaryotic cells and are responsible for the production of energy such as ATP , necessary for cellular functioning. process. Mitochondria are important for eukaryotic cells. They can reduce fatty acids and other lipids and lengthen fatty acid chains. Subunits of membrane-bound hemeproteins are synthesized and assembled in mitochondria. Mitochondria are capable of growing or producing rapidly independently within the cell. Mitochondria have been found to contain a genetic apparatus for synthesizing enzymes and proteins. In this essay, I will focus more on the mitochondria organelle, the site of energy production. Explain how the organelle was first established and isolated from cells. Extending to the size, shape, structural organization of the mitochondria, but also the number of these organelles per cell, their location within the cell. Extending to the functions of the organelle which acts as a digestive system that engulfs nutrients and breaks them down to create energy for cells for metabolism, the process of creating energy is known as cellular respiration . (scheffler, 2008) DISCOVERY OF MITOCHONDRIA Mitochondria were observed about 100 years ago by the Swiss anatomist Albert Von Kollicker who teased these organelles and studied their osmotic behavior in different saline solutions. In the 1890s, Richard Altmann created them and called them "bioblasts." The Carl Benda invented the term mitochondrion which has its origins in the Greek language and which meant filiform granules which they saw under an optical microscope. In 1900, Michaela introduced the use of Janus green B to stain mitochondria...... middle of paper...... cells that require high energy like muscle cells. It contains two functionally different membranes: the inner membrane and the outer membrane. And between the membranes is a fluid, the inner membrane protects the matrix of the cell. Mitochondria are a multifunctional organelle, they play different roles depending on the cell. (Roodyn & Wilkies, 1968)References lehninger, AL (1965). The molecular basis of mitochondria's structure and function. New York: W. A. ​​Benjamin. Roodyn, D.B. and Wilkies, D. (1968). Mitochondrial biosynthesis. London: Methuen. Scheffler, that is (2008). mitochondria. Canada: John Wiley and his sons. sheeler, p., and bianchi, de (1980). cell biology: structure, biochemistry and function. Canada: John Wiley & Sons, Inc. tedeshi, h. (1976). mitochondria: structure, biogenesis and transduction functions. New York: Springer-Verlag.