Which of the following steps in the citric acid cycle directly produces a molecule of ATP (or GTP)?
A) citrate → isocitrate
B) succinate → fumarate
C) malate → oxaloacetate
D) succinyl CoA → succinate
E) isocitrate → α -ketoglutarate

Question

Quizplus · Accepted Answer

The conversion of succinyl CoA to succinate in the citric acid cycle is coupled with the substrate-level phosphorylation of GDP to GTP (or ADP to ATP), directly producing a molecule of GTP (or ATP).

Which of the Following Steps in the Citric Acid Cycle