The process of glucose breakdown to produce ATP is

Aglycolysis → pyruvate oxidation → citric acid cycle → electron transport and oxidative phosphorylation
Bglycolysis → electron transport and oxidative phosphorylation → pyruvate oxidation → citric acid cycle
Cpyruvate oxidation → citric acid cycle → glycolysis → electron transport and oxidative phosphorylation
Dpyruvate oxidation → citric acid cycle → electron transport and oxidative phosphorylation → glycolysis

Correct answer: A. glycolysis → pyruvate oxidation → citric acid cycle → electron transport and oxidative phosphorylation

The correct sequence is glycolysis, followed by pyruvate oxidation, then the citric acid cycle, and finally electron transport and oxidative phosphorylation.

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