In the Krebs cycle, the pieces of the starting glucose molecule (now pyruvate) are completely broken apart to produce carbon dioxide. What happened to all the energy that was contained in the bonds of the original glucose molecule?
a) It was used to turn oxygen gas into water.
b) It was all used in the Krebs cycle to make ATP.
c) It was lost as heat.
d) It is still in the bonds of pyruvate.
e) It was transferred into NADH and FADH2 and some ATP.
Ans: e) It was transferred into NADH and FADH2 and some ATP.
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