Concept26 - phosphorylating glucose This requires 2 ATP per glucose In the energy payoff phase ATP is produced by substrate-level phosphorylation

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Concept 9.2 Glycolysis harvests chemical energy by oxidizing glucose to pyruvate During glycolysis, glucose, a six carbon-sugar, is split into two three-carbon sugars. These smaller sugars are oxidized and rearranged to form two molecules of pyruvate, the  ionized form of pyruvic acid. Each of the ten steps in glycolysis is catalyzed by a specific enzyme. These steps can be divided into two phases: an energy investment phase and an energy  payoff phase. In the energy investment phase, the cell invests ATP to provide activation energy by 
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Unformatted text preview: phosphorylating glucose. This requires 2 ATP per glucose. In the energy payoff phase, ATP is produced by substrate-level phosphorylation and NAD + is reduced to NADH by electrons released by the oxidation of glucose. The net yield from glycolysis is 2 ATP and 2 NADH per glucose. No CO 2 is produced during glycolysis. Glycolysis can occur whether O 2 is present or not....
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This note was uploaded on 01/04/2012 for the course BSC BSC1005 taught by Professor Orlando,rebecca during the Fall '10 term at Broward College.

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