Answer:
Mitochondria are organelles within cells that are responsible for producing the energy that the cell needs to function. Mitochondrial cytopathy is a condition in which the mitochondria are not functioning properly, resulting in a reduction in energy production. Cells with the highest metabolic rates, such as nerve cells and muscle cells, are the most severely affected because they require the most energy to function. These cells have a high number of mitochondria, so when they are not functioning properly, it has a greater impact on the overall energy production of the cell. This can lead to symptoms such as muscle weakness, fatigue, and problems with coordination.