Since there are six intermediates in the second half of the route that generates energy so glucose six phosphate is the answer that best fits the facts. Hence, option A is correct.
What is the definition of first intermediate molecule created during glycolysis?
In a continuous series of processes that each require two ATP, glucose is first compound that is transformed into fructose-1,6-bisphosphate. Later, unstable fructose-1,6-bisphosphate breaks into half, resulting in the formation of the three-carbon molecules DHAP and glyceraldehyde-3-phosphate.
Basically, one glucose molecule is converted into two pyruvate (pyruvic acid) molecules, four ATP molecules, and two NADH molecules during the process of glycolysis. The three primary products of glycolysis are ATP, produced via substrate-level phosphorylation, NADH, produced by REDOX processes, and pyruvate molecules.
Learn more about ATP molecules from the link given below.
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