BY 108 Chapter Notes - Chapter 9: Glyceraldehyde 3-Phosphate, Pyruvic Acid, Glyceraldehyde
Document Summary
10 reaction sequence converting glucose to 2 3-carbon molecules of pyruvate. Glucose + 2adp + 2p + 2nad+ >> 2 pyruvate + 2atp + 2nadh + 2h+ + Can be performed by all organisms (doesn"t require oxygen or special organelles) Metabolism evolves by adding reactions to each other, so glycolysis was never replaced priming - 1st half of glycolysis; makes 2 3-carbon glyceraldehyde 3-phosphates from glucose. 3 reactions changing glucose into a compound that can be readily cleaved into 3-carbon phosphorylated molecules. 2 of the reactions require use of atp. 2 reactions break up 6-carbon molecule into 2 3-carbon molecules. 1st of 2 reactions forms g3p and another molecule that turns into. G3p through the 2nd reaction substrate-level phosphorylation - 2nd half of glycolysis; makes pyruvate from g3p. 2 electrons, 1 proton transferred from g3p to nad+ to make nadh. 4 reactions convert g3p to pyruvate, generating 2 atp in total, 4 atp per glucose molecule produced.
