The Conversion of Pyruvate to Phosphoenolpyruvate (PEP)in Gluconeogenesis

question 16

Multiple Choice

The conversion of pyruvate to phosphoenolpyruvate (PEP) in gluconeogenesis

• A) requires the net input of two equivalents of NADH.
• B) occurs in two steps and is catalyzed by the enzymes pyruvate carboxylase and phosphoenolpyruvate carboxykinase.
• C) is a thermodynamically spontaneous reaction that gives rise to a stable product.
• D) requires lactate as a precursor.

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