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Answer:
The aerobic cellular respiration of the glucose where glucose is converted to energy via four steps as follows
1. Glycolysis (glucose break down to pyruvic acid)
2. Link reaction
3. Krebs cycle
4. Electron transport chain, or ETC
The four pyruvic acid produces Four ATP, twenty NADH, and four molecules
Explanation:
When four pyruvic acid enters step two of the aerobic cellular respiration, they are converted by Oxidative decarboxylation into acetyl-CoA, four molecules of NADH and four molecule of CO2 are formed. This process is otherwise called the link reaction or transition step, because it connects or links the Krebs cycle and glycolysis.
From the chemical reactions involved in cellular respiration of one glucose molecule, from two pyruvic acid molecules we have 2 ATP molecules, 10 NADH molecules, and 2 FADH2 molecules
Hence from four pyruvic acid molecules we have that the acetyl-CoA produced from the four pyruvic acid enters the the Krebs cycle and forms four ATP molecules, twenty NADH molecules, and four molecules.