Among the products of glycolysis, which compounds contain energy that can be used by other biological reactions?
A. pyruvate and ATP only
B. ATP only
C. NADH only
D. ATP and NADH only
E. pyruvate, ATP, and NADH
Answer (2)
Glycolysis uses substrate-level phosphorylation for ATP synthesis, while oxidative phosphorylation uses a proton gradient for more efficient ATP production. Among glycolysis products, ATP, NADH, and pyruvate contain usable energy for the cell. The right answer is 'pyruvate, ATP, and NADH'. ;
The correct answer is E, as the products of glycolysis—pyruvate, ATP, and NADH—contain energy that can be utilized by other biological reactions. ATP is the direct energy currency of the cell, NADH serves as an energy carrier, and pyruvate can enter further energy-producing pathways. Together, they illustrate the energy efficiency of glycolysis in cellular metabolism.
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