When combined with electron transport, one turn of the citric acid cycle produces ________ ATP.
A)24
B)12
C)10
D)14
E)2

Question

Quizplus · Accepted Answer

One complete turn of the citric acid cycle produces 1 ATP through substrate-level phosphorylation. However, the electrons and H+ ions generated during the cycle are passed through the electron transport chain, which produces about 3 ATP per pair of electrons. NADH and FADH2 are produced during the cycle, and they donate their electrons to the electron transport chain, resulting in the production of a total of about 10 ATP per turn of the cycle.

When Combined with Electron Transport, One Turn of the Citric