A cell produces approximately 30 ATP per glucose molecule. However, if you calculated the total energy in a glucose molecule, 90 ATP should be generated. What is the best explanation for this difference?
A. Some of the energy is destroyed.
B. Scientists have not figured out where the rest of the energy goes.
C. ATP has more energy than originally thought.
D. Some of the energy is used to do work in the cell.
E. Some energy is lost as heat.
