How many steps of decarboxylation lead to the formation of ketoglutaric acid?

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AOne

BThree

CTwo

DSeven

Answer:

Two steps of decarboxylation leads to the formation of ketoglutaric acid.
When citric acid is formed in the cycle, it then forms cis-acotinic acid and then isocitric acid.
Isocitric acid further forms oxalosuccinic acid which finally forms ketoglutaric acid in the presence of oxalosuccinate decarboxylase enzyme.

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