Mitochondria are membrane-bound organelles found within eukaryotic cells that are often referred to as the "powerhouses" of the cell. They are responsible for generating most of the cell's supply of adenosine triphosphate (ATP), which is used as a source of chemical energy. Mitochondria are also involved in processes such as metabolism, signaling, cell growth, and cell death. Research on mitochondria focuses on understanding their structure, function, and role in various cellular processes. This includes studying how mitochondria produce ATP through oxidative phosphorylation, how they regulate metabolism and cell signaling, and how dysfunction in mitochondria can lead to diseases such as neurodegenerative disorders, cancer, and metabolic disorders. Researchers are also investigating ways to target mitochondria as a potential therapeutic strategy for treating various diseases and improving overall cellular function. Additionally, studies are being conducted to better understand the role of mitochondria in aging and longevity, as well as in the regulation of cellular homeostasis.