Friday, November 24, 2017
Repeated USMLE Questions Step 1- 207
Gluconeogenesis is a metabolic process in which glucose is generated from non-carbohydrate carbon substrates.
Which one of the following substrates does NOT share its carbon in glucose skeleton but rather contributes as an energy source for gluconeogenesis?
A- Acetyl CoA
E- Succinyl CoA
Acetyl CoA is an energy source as it generates 12 ATP for each citric acid cycle. Other substrates contribute their carbon in glucose skeleton.
The correct answer is A