What is the overall (net) yield of ATP when one molecule of stearic acid (C₁₈H₃₆O₂) is oxidized to CO₂? A)122 ATP B)120 ATP C)116 ATP D)114 ATP

Question

Quizplus · Accepted Answer

The oxidation of stearic acid involves its activation, β-oxidation, and the citric acid cycle. Stearic acid undergoes 8 cycles of β-oxidation, producing 9 acetyl-CoA, 8 NADH, and 8 FADH2. Each acetyl-CoA enters the citric acid cycle, generating 3 NADH, 1 FADH2, and 1 ATP (or GTP). The total ATP yield is calculated by considering the ATP produced from NADH and FADH2 through oxidative phosphorylation. The net yield is approximately 120 ATP after accounting for the ATP used in the activation of stearic acid.

What Is the Overall (Net) Yield of ATP When One