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Which one of the following statements about glycolysis and Krebs cycle is correct? A. Succinate is...

Which one of the following statements about glycolysis and Krebs cycle is correct?

A. Succinate is the oxidized product of a redox reaction in Krebs cycle.

B. For every pyruvate, 8 NADH result from Krebs cycle.

C. The coenzyme in the oxidation of isocitrate is CO2.

D. Pyruvate can be found in the cytoplasm and mitochondrial matrix of eukaryotic cells.

E. Oxaloacetate is the reduced product of a redox reaction in Krebs cycle.

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Answer #1

Option A, D

For option D,

Pyruvate is produced by glycolysis in the cytoplasm, but pyruvate oxidation takes place in the mitochondrial matrix (in eukaryotes).

For option A,

Here A alpha-ketoglutrate in any step of kreb cycle gets converted into Succinate via succinylCO-A with the lose of reducing power NADH+H+ and it means succinate is a oxidised product losing H and transferring it's H+ to NAD+ and force to form NADH2.

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