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Review: Glucose to Carbon Dioxide and Water
publish date: 2026/06/21 20:08:5.476111 UTC
Glucose is first broken down by (1) in the cytoplasm. The resulting pyruvate, if oxygen is present, enters the mitochondria, where it is converted to acetyl-CoA and processed through the (2), generating electron carriers that fuel the electron transport chain.
Please drag and drop the selected option in the right place or type it instead
deamination
fermentation
glycolysis
Krebs cycle
Correct Answer
(1) glycolysis
(2) Krebs cycle
Explanation
This sequence captures the full respiratory pathway: glycolysis breaks down glucose in the cytoplasm, and if oxygen is available, the resulting pyruvate is processed through the Krebs cycle in the mitochondria, ultimately fueling the electron transport chain to produce most of the cell's ATP.
Reference
Biology: A self-teaching guide