In aerobic metabolism, cells primarily produce ATP via which process?

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Multiple Choice

In aerobic metabolism, cells primarily produce ATP via which process?

Explanation:
In aerobic metabolism the main source of ATP is oxidative phosphorylation, where the energy from electrons moved through the mitochondrial electron transport chain powers ATP synthase to make ATP from ADP and phosphate. The electron transport chain gets its electrons from NADH and FADH2 produced earlier in glycolysis and the citric acid cycle. As electrons flow, protons are pumped across the inner mitochondrial membrane, creating a gradient that the enzyme uses to drive most of the ATP synthesis. Fermentation would only occur when oxygen is unavailable to accept electrons, and it yields far less ATP. So, the bulk of ATP under aerobic conditions comes from oxidative phosphorylation via the electron transport chain.

In aerobic metabolism the main source of ATP is oxidative phosphorylation, where the energy from electrons moved through the mitochondrial electron transport chain powers ATP synthase to make ATP from ADP and phosphate. The electron transport chain gets its electrons from NADH and FADH2 produced earlier in glycolysis and the citric acid cycle. As electrons flow, protons are pumped across the inner mitochondrial membrane, creating a gradient that the enzyme uses to drive most of the ATP synthesis. Fermentation would only occur when oxygen is unavailable to accept electrons, and it yields far less ATP. So, the bulk of ATP under aerobic conditions comes from oxidative phosphorylation via the electron transport chain.

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