Respuesta :
Mitochondrion is common to plant and animal cells.
As the center of cellular energy production, mitochondria generate the power required for cellular survival and activity. Using a series of chemical processes, mitochondria convert glucose into adenosine triphosphate (ATP), an energy molecule that powers a number of other cellular processes.
The production of cellular ATP by oxidative phosphorylation is obviously one of the functions of mitochondria, but they also play significant roles in ion homeostasis, several metabolic pathways, apoptosis and programmed cell death, as well as the production and consumption of ROS. These all have potential importance in disease and/or ageing. Mitochondrial dysfunction may accumulate as a result of damage. Radicals generated by the mitochondria themselves could be the direct cause of this damage. When nuclear or mitochondrial DNA is mutated as a result of a variety of internal or external insults, such as skin exposure to ultraviolet radiation, regulatory or sequence errors may result. Deterioration of the quality control mechanisms that typically prevents the accumulation of dysfunctional components can exacerbate these effects.
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