The sequential stages of energy metabolism include: glycolysis, pyruvate to acetyl CoA, the TCA cycle, and the electron transport chain.

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These stages represent the core processes of cellular respiration, where glucose is broken down and its energy is captured in the form of ATP. Glycolysis splits glucose into pyruvate, which is then converted into acetyl CoA. Acetyl CoA enters the TCA cycle (also known as the Krebs cycle or citric acid cycle), and the resulting electrons are transferred through the electron transport chain, leading to ATP production.

The Sequential Stages of Energy Metabolism Include: Glycolysis, Pyruvate to Acetyl