Glycolysis. During glycolysis, glucose is broken down in ten steps to two molecules of pyruvate, which then enters the mitochondria where it is oxidised through the tricarboxylic acid cycle to carbon dioxide and water. Glycolysis can be split into two phases, both of which occur in the cytosol.
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Explanation:
Glycolysis takes place in the cytosol. The glycolytic pathway, glucose is broken down in ten steps to two molecules of pyruvate. The initial steps in glycolysis are to trap the glucose in the cell and cleaved into phosphorylated three- carbon units. Stage 2, is the conversion of the fructose 1,6-bisphosphate into two three-carbon fragments. These resulting three-carbon units are interconvertible. In stage 3, ATP is harvested when the three-carbon fragments are oxidized to pyruvate. The main transformation occurs one glucose molecule is converted into two pyruvate molecules, and 2 ATP molecule and 2 NADH molecules are released.
