Answer:
Mithocondria
Step-by-step explanation:
Mitochondrias are cellular organelles responsible for supplying most of the energy necessary for cellular activity. They synthesize ATP from nutrients such as glucose, fatty acids and amino acids.
ATP (adenosine triphosphate) is the main source of energy for most cellular functions. It is composed of a nitrogenous base attached a pentose type sugar and three phosphate groups.