Glycolysis
Glucose is phosphorylated using ATP to form glucose-6- phosphate. This keeps the glucose in the cell as it cannot exit through glucose transporters and commits the glucose molecule to glycolysis. Phosphorylation also makes the glucose more reactive.

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Key terms in this lesson
- ATP
- Adenosine triphosphate, the universal energy currency of cells, which releases energy for cellular reactions when hydrolysed to ADP and inorganic phosphate.
More in Respiration
- Energy from Glucose.
- Phosphorylation
- Lysis
- Substrate Level Phosphorylation
- The Link Reaction
- The Krebs Cycle.
- oxidative phosphorylation
- ATP Synthase
All 12 lessons in Respiration · All OCR A-level Biology topics