Question

Identify from the following, the compound that links glycolysis and Krebs cycle

• A. Oxalo acetic acid
• B. Pyruvic acid
• C. Lactic acid
• D. Acetyl Co-A

Answer 1

Answer: (D)

After glycolysis, pyruvic acid enters in the matrix of mitochondria and undergoes acetylation by oxidative decarboxylation using $5$ coenzymes and cofactors and $4$ enzymes to form $2$ carbon compounds acetyl $Co-A$. This acetyl $Co-A$ or activated acetic acid act as a connecting link between glycolysis, Krebs cycle and oxidation of fats.