Question 16 • 2026-2027 EDGE Human Anatomy and Physiology A
Aerobic respiration begins with glycolysis, which splits glucose into smaller molecules in the cytoplasm. Next, the citric acid cycle processes those molecules and releases carbon dioxide. Finally, electrons pass through the electron transport chain, which drives oxidative phosphorylation to make most of the cell’s ATP. Therefore, the correct order is glycolysis, citric acid cycle, electron transport chain.
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