Final answer:
Glycolysis is the initial step in the aerobic respiration cycle, breaking down glucose into pyruvate to produce ATP without oxygen.
Explanation:
Glycolysis is the first step in the aerobic respiration cycle. It is the process where glucose is broken down into pyruvate, generating ATP without oxygen.
The citric acid cycle and oxidative phosphorylation occur after glycolysis, continuing the breakdown of pyruvate to generate more ATP.
Therefore, glycolysis precedes the citric acid cycle, oxidative phosphorylation, and fermentation in the aerobic respiration process.
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