Final answer:
Under aerobic conditions, pyruvate and NADH are transported into the mitochondria. Pyruvate undergoes oxidation to form acetyl-CoA, while NADH is oxidized to NAD+. The acetyl-CoA enters the Krebs cycle, and NADH is used in the electron transport chain to produce ATP. Oxygen is the terminal electron acceptor in the electron transport chain.
Step-by-step explanation:
In aerobic conditions, pyruvate and NADH are transported into the mitochondria. Pyruvate undergoes oxidation to form acetyl-CoA, while NADH is oxidized to NAD+ through a series of reactions. The acetyl-CoA then enters the Krebs cycle, and NADH is used in the electron transport chain to produce ATP. Oxygen serves as the terminal electron acceptor in the electron transport chain.