Where simple sugars are broken down into carbon dioxide, water vapor and atp ogranelle?

Answer: Mitochondria

Explanation: Mitochondria is an organelle responsible for cellular respiration which is the break down of Simple sugars into carbon dioxide, water, ATP (adenosine trisphosphate).

It has a double membrane, known as the power House of the cells found in the cytoplasm of most Eukaryotic organisms. The number of Mitochondria found in an organism varies according to the Oxygen requirements of that organism. In human liver contains about 2000 Mitochondria, the Red blood cells do not contain Mitochondria.