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When Pyruvate Can Be Further Oxidized
publish date: 2026/06/21 21:35:35.089289 UTC
In the (1), the 3-carbon pyruvic acid molecules produced through glycolysis can be further oxidized.
Please drag and drop the selected option in the right place or type it instead
presence of oxygen
ribonucleic acid
absence of oxygen
nucleus
Correct Answer
(1) presence of oxygen
Explanation
Pyruvate produced by glycolysis can only be further oxidized through the Krebs cycle and electron transport chain when oxygen is present. Without oxygen, the cell instead relies on fermentation.
Reference
Biology: A self-teaching guide