A) lactic acid
B) acetoacetic acid
C) cis-aconitic acid
D) acetyl Co-A
Correct Answer: D
Solution :
Pyruvic acid enters in the matrix of mitochondria and undergoes acetylation by oxidative decarboxylation using 5 coenzyme and cofactors and 4 enzymes (collectively forms pyruvate dehydrogenase complex) to form 2 carbon compounds acetyl Co-A. This step is also called gateway step or link reaction or transition reaction. This acetyl Co-A or activated acetic acid is connecting link between glycolysis, Rrebs' cycle and oxidation of fats.
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