Which of the following best describes the outcome of oxidative metabolism?

The outcome of oxidative metabolism primarily involves the breakdown of substrates such as glucose in the presence of oxygen to produce energy, carbon dioxide, and water. This process occurs in the mitochondria of cells and is efficient in generating ATP, the molecule that powers cellular functions. The heat produced is a byproduct of this metabolic activity, emphasizing the energy transformation that takes place.

In contrast, glucose is not converted into oxygen; rather, oxygen is consumed in the process, which is why the rationale behind the selection highlights the role of oxygen in oxidative phosphorylation. The other options refer to anaerobic processes or incorrect metabolic conversions that do not accurately reflect what occurs during oxidative metabolism. Overall, the correct outcome captures the essence of how energy production and waste formation occur during this essential metabolic pathway.