Which step produces the most ATP?

Question

Quizplus · Accepted Answer

The electron transport chain produces the most ATP out of the three steps. During the electron transport chain, energy is transferred from electron carriers (NADH and FADH2) to protein complexes in the inner mitochondrial membrane. As electrons are passed through these protein complexes, protons are pumped from the matrix into the intermembrane space, creating a proton gradient. This gradient is used by ATP synthase to produce ATP from ADP and inorganic phosphate. Overall, the electron transport chain produces a total of 28-34 ATP molecules per glucose molecule, whereas glycolysis generates 2 ATP and the Krebs cycle generates 2 ATP.

Which Step Produces the Most ATP