Answer
The total ATP produced from all the processes can be obtained as follows:
$(2ATP)+Citric acid cycle (2 ATP)+10NADH (10×3=30ATP)+2FADH_{2}(2×2=4ATP)=38ATP$
The NADH and FADH2 formed in glycolysis, pyruvate oxidation, and the citric acid cycle enter the electron transport chain to produce ATP through oxidative phosphorylation.
Work Step by Step
ATP production by oxidative phosphorylation is driven by the proton motive force generated from the proton gradient. This gradient is also utilized in processes like the transport of free phosphate and other molecules inside the mitochondrial matrix. Hence, the proton gradient and, therefore, the proton motive force decrease.