Respuesta :
Answer: NADH
Explanation:
In both of the processes the electron acceptor is NADH which accepts the electrons. Glycolysis takes place in the cytoplasm of the cell.
In case of glycolysis the NADH accepts the electrons when the Glyceraldehydyde 3-phosphate is converted into 1, 3 Biphosphoglyceric acid. In the last step of the glycolysis 4 ATP molecules are produced.
Kreb's Cycle takes place in the mitochondria of the cell. During this process the electron acceptor is NADH. 3 molecules of NADH is produced during the process of citric acid cycle.
During the step when the isocitrate is converted into alphaketogluterate , alphaketogluterate is converted into succinyl co A and malate to oxaloacetate produces 1 molecules of NADH at each step.
NAD+ is an intermediate electron acceptor for oxidations that occur in both glycolysis and in krebs cycle reactions.
Nicotinamide adenine dinucleotide (NAD) is found in all living cells, where its role is to transfer electrons, as in glycolysis and krebs cycle.
- For glycolysis to take place, it requires the presence of NAD + in the medium, that is, the successively produced NADH molecules must somehow be reoxidized to NAD + to guarantee the continuity of glycolytic degradation.
- The Krebs cycle is responsible for releasing large amounts of electrons and protons that will be transported to the respiratory chain through NAD (it is formed from niacin) or FAD (it is formed from riboflavin).
- NAD is the coenzyme of dehydrogenase, so 3 ATP will be formed as a consequence of respiratory chain activity.
Therefore, we can conclude that NAD + is an intermediate electron acceptor for oxidations that occur in both glycolysis and in krebs cycle reactions.
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