Mitochondria
Mitochondria are membrane-bound organelles, but they are bound to two different membranes. This is unusual for an intercellular organelle. These membranes function for the purpose of mitochondria, which are primarily responsible for energy production. This energy is produced, in other words, transformed, by chemicals passing through pathways inside the cell. This conversion process produces energy in the form of ATP because phosphate is a high-energy bond that fuels other reactions in the cell.
The purpose of the mitochondria is therefore to generate this energy. Some different cells have a different number of mitochondria because they require more energy. Muscle, for example, has many mitochondria, as does the liver, kidneys, to some extent, the brain, which lives on the energy generated by these mitochondria. So if you have a defect in the normal functioning of your mitochondria, you have symptoms in the muscles, in the brain, and sometimes in the kidneys; many types of symptoms. We may not know all the different diseases that cause mitochondrial dysfunction.
For more information, read: Mitochondria
Difference Between Mitochondria And Plastids
Mitochondria and plastids are two important organelles found in eukaryotic cells. Mitochondria and plastids are membranous organelles with fluid-filled sacs inside. The key difference between mitochondria and plastids is that mitochondria are involved in the energy production of cells through cellular respiration, while plastids perform various functions such as food storage and photosynthesis.