Mitochondria are the energy-producing organelles, commonly known as “the powerhouse of the cell.” The process of cellular respiration occurs in the mitochondria. During this process, sugars and fats are broken down through a series of chemical reactions, releasing energy in the form of adenosine triphosphate (ATP).
ATP is like the energy currency of the cell. Think of each molecule like a rechargeable battery that can be used to power various cellular processes.