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Oxidative Phosphorylation Essay

Oxidative Phosphorylation refers to a metabolic pathway by which energy is consumed emanating from nutrients through a production of adenosine triphosphate. In this process, electrons are usually transferred from electron donors to the acceptors through a redox reaction. The adenosine tri-phosphate is a type of molecule that supplies energy for metabolism. This metabolic pathway is invasive due to the efficient way of releasing energy. The world is made up of living things that subsequently use different forms of nutrients.

Research has shown that 95 percent of all living things carry out oxidative phosphorylation to produce adenosine tri-phosphate. The adenosine tri-phosphate uses the energy that is released by the redox reaction (Muriel & Kreps, 14). Oxidative phosphorylation is an important part of metabolism as it produces reactive oxygen species such as superoxide and hydrogen peroxide which leads to the proliferation of free radicals which damage cells as well as bring about diseases and aging.

The enzymes that carry these metabolic pathways have poisons that interfere with their activities. The Oxidative phosphorylation works by using the energy that is released by chemical reactions which makes the energy requiring reactions to be possible. Therefore, this means that the flow of electron from donors to electro acceptors forms the process through which the oxidative phosphorylation works.

The electron transport and the adenosine triphosphate are usually entrenched in a membrane and energy. In this case, energy is transferred from the electron transport chain to the adenosine triphosphate by the movement of protons across the membrane (Harold, 6). This movement creates a gradient across the membrane due to difference in proton concentration. The adenosine synthesis releases the stored energy allowing the protons to flow.

As a result of this process, the amount of energy that is released by oxidative phosphorylation is high enough to supply energy to the cells of a living thing hence supporting its metabolic reactions.

Works Cited Harold, F. The Way of the Cell Molecules, Organisms and the Order of Life. 2001, New York: Oxford University Press. Muriel, V & Kreps, S. Mitochondrial Membrane Potential: A Novel Biomarker of Oxidative Environmental Stress. 2002. Environmental Health Perspective. Vol. 110, p. 8-19


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