Answer:
In the matrix the carbon atoms of pyruvate are converted to acetyl CoA to enter into the TCA cycle.
Step-by-step explanation:
Pyruvate is the end product of glycolysis.Pyruvate is is converted to acetyl CoA by the catalytic activity of pyruvate dehydrogenase enzyme .
Acetyl CoA then enters the the TCA cycle to to continue the rest of the steps of aerobic respiration.TCA cycle result in the formation of a NADH,FADH2,CO2 AND H2O.