Answer :
They are coupled together because one or more outputs from one stage function as an a. Puruvate; b. NADH; c. NAD+; d. NADH and e. NAD+.
The breakdown of glucose and the creation of ATP are both components of cellular respiration. It can take place with or without oxygen and is referred to as aerobic or anaerobic cellular respiration, respectively.
Glycolysis, pyruvate oxidation, the TCA cycle (the citric acid cycle), the electron transport chain, and oxidative phosphorylation are the processes in aerobic cellular respiration.
Glycolysis and fermentation are the next processes in anaerobic cellular respiration.
NADH and FADH2 are byproducts of glycolysis, puruvate oxidation, and the TCA cycle. The development of an electrochemical gradient across the inner mitochondrial membrane is caused by these byproducts, which enter the electron transport chain.
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