We will encounter the following molecule in our discussion...

We will encounter the following molecule in our discussion of glycolysis, the biochemical pathway that converts glucose to pyruvic acid (Section $28-2$ ). (a) Draw structural formulas for the products of hydrolysis of the ester bond in phosphoenolpyruvate. (b) Why are the letters enol a part of the name of this compound?

We will encounter the following molecule in our discussion of glycolysis, the biochemical pathway that converts glucose to pyruvic acid (Section $28-2$ ).
(a) Draw structural formulas for the products of hydrolysis of the ester bond in phosphoenolpyruvate.
(b) Why are the letters enol a part of the name of this compound?

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Key Concepts

Ester Bond Hydrolysis

Ester bond hydrolysis is a chemical reaction where water molecules break the ester linkage, leading to the formation of an acid and an alcohol. In biochemical contexts, this reaction is essential for understanding how high-energy compounds like phosphoenolpyruvate are transformed during metabolic processes.

Enol

An enol refers to a functional group in organic chemistry that features a hydroxyl group directly attached to a carbon involved in a double bond. The presence of this enolic structure, which can interconvert with a keto form through tautomerization, explains why 'enol' is part of the compound's name, reflecting its unique chemical reactivity and stability.

Glycolysis

Glycolysis is the metabolic pathway that converts glucose to pyruvic acid, generating energy in the form of ATP and NADH. It involves a sequence of enzyme-catalyzed reactions, and understanding this process is central to studying cellular respiration and energy production.

Phosphoenolpyruvate

Phosphoenolpyruvate (PEP) is a high-energy intermediate in glycolysis characterized by a phosphate group esterified to an enol form of pyruvic acid. Its ability to transfer a phosphate group to ADP, forming ATP, makes it critically important in energy metabolism.

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