During cellular respiration, the covalent bonds of a molecule are indeed broken down to produce various products. The specific molecule that is broken down in cellular respiration is sugar, also known as glucose. Glucose is a six-carbon molecule that serves as the primary source of energy for cells. Through a series of chemical reactions, the covalent bonds of glucose are progressively broken, releasing energy which is then captured in the form of ATP (adenosine triphosphate), the cell's main energy currency. The breakdown of glucose during cellular respiration occurs in several steps, including glycolysis, the Krebs cycle (also known as the citric acid cycle), and oxidative phosphorylation, which takes place in the mitochondria of cells.
The molecule that is broken down during cellular respiration is sugar.
During cellular respiration, the molecule that is broken down is sugar (glucose).
