Final answer:
The statement about catabolic processes releasing chemical energy by breaking down complex molecules into simpler ones is true. Catabolic reactions are critical for metabolism in cells, releasing energy that is partially captured in the form of ATP.
Step-by-step explanation:
The statement that catabolic processes involve the degradation of complex molecules into simpler molecules with the net release of chemical energy is true. Catabolic reactions break down larger molecules such as carbohydrates, lipids, and proteins, which are found in food, into their smaller constituents.
In the process, energy is released, which is necessary for the metabolic processes in cells throughout the body. For example, as much as 40 percent of the energy yielded from these reactions is transferred to ATP (Adenosine Triphosphate), which is the energy currency of the cell and can power various cellular functions. The remaining energy is released as heat, absorbed by tissues and body fluids.