What energy-carrier molecules are produced by glycolysis?

O

A. Glucose and pyruvate

OB. NADH and ATP

O

C. NADH and glucose

O

D. ADP and ATP

Answer: B). NADH and ATP

Explanation: Glycolysis is a ten enzyme catalyzed reaction in which glucose a six-carbon sugar is broken down into two molecules of three-carbon pyruvate. Glycolysis is divided into two phases: the preparatory phase constituted by the first five reactions and the pay off phase constituted by the remaining five reactions. Energy-carrier molecules are produced in the pay off phase. In this phase, four molecules of ATP and two molecules of NADH are produced. NADH is produced in a reaction catalyzed by glyceraldehyde 3-phosphate dehydrogenase in which glyceraldehyde 3-phosphate is converted to 1,3-Bisphosphoglycerate. ATP are produced in a reaction catalyzed by phosphoglycerate kinase in which 1,3-Bisphosphoglycerate to 3-phosphoglycerate, and in a reaction catalyzed by pyruvate kinase in which Phosphoenolpyruvate is converted to pyruvate.