Glycolysis - Respiration

• 1. Phosphorylation of glucose to glucose phosphate, using ATP (sometimes called the “activation of glucose”).
  2. Glucose phosphate is split into two molecules of triose phosphate. The fact that glucose is phosphorylated makes it more reactive and therefore easier to split.
  3. Triose phosphate is then oxidised to pyruvate such that NAD is reduced by hydrogen (from the triose phosphate) into reduced NAD (NADH). There is also a net gain of ATP from this stage.