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Illustrate glucose molecule executes the Krebs cycle twice

Why can it be stated that each glucose molecule executes the Krebs cycle twice?

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Each and every glucose molecule “cycles” the Krebs cycle twice since after glycolysis each utilized glucose has produced two pyruvic acid molecules and each pyruvic acid is transformed in a 1:1 proportion into acetyl CoA. All acetyl CoA then cycles the Krebs cycle once.

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