The mitochondria found within the membrane of cells is the organelle that converts sugars into energy. The process, called aerobic cellular respiration, uses sugars and oxygen to create a chemical energy called adenosine triphosphate. read more
The organelle which converts solar energy into useable energy for the plant is called the chloroplast. The chloroplast contains chlorophyll, the green pigment in plants which traps light and converts it into glucose, water, and oxygen. read more