The 9th step of glycolysis involves the conversion of 2PG to PEP. The reason why this step is important is because it helps to make the eventual end product of glycolysis (pyruvate) a very stable molecule.  Please answer the following two questions regarding this: 1. WHY is it useful thermodynamically to have the final product of glycolysis be very stable?  2. What specific feature of pyruvate, that we discussed in class, makes it so stable and what did step 9 of glycolysis have to do with this?

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