Question

Connecting link between glycolysis and Krebs' cycle is

• A. $PGA$
• B. aldehyde
• C. ketone
• D. acetyl $CoA$

Answer 1

Answer: (D)

acetyl $CoA$

Answer 2

The pyruvic acid, generated in the glycolysis, enters into the mitochondrial matrix, undergoes oxidative decarboxylation and forms active acetate i.e., acetyl $Co-A$. The acetyl $Co-A$ is accepted by the Krebs' cycle. Therefore, it acts as intermediate compound between glycolysis and Kreb's cycle.