Question

question
which of the following metabolic pathways produce(s) the most atp, per glucose molecule metabolized, during cellular respiration?
answer
glycolysis
substrate-level phosphorylation
citric acid cycle
fermentation
the electron transport chain and oxidative phosphorylation
i dont know yet

Explanation:

• Glycolysis produces a small amount of ATP (net 2 ATP per glucose).
• Substrate - level phosphorylation in glycolysis and the citric acid cycle has a limited ATP yield.
• The citric acid cycle (per glucose, considering two acetyl - CoA from one glucose) has a moderate ATP production via substrate - level phosphorylation.
• Fermentation has a very low ATP yield (similar to glycolysis in terms of net ATP from glucose breakdown, but without further ATP from the electron transport chain).
• The electron transport chain and oxidative phosphorylation produce the majority of ATP during cellular respiration. For each glucose, through the electron transport chain and oxidative phosphorylation (after glycolysis and the citric acid cycle provide NADH and FADH₂), about 28 - 32 ATP are produced (depending on the shuttle system for NADH in the cytoplasm).

Answer:

The electron transport chain and oxidative phosphorylation