Multiple Choice
In glycolysis, which molecule derived from dietary carbohydrates is the primary reactant that enters the pathway?
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Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway
Glycolysis 1
Multiple Choice
In glycolysis (conversion of one glucose to two pyruvate), how many molecules of reduced flavin adenine dinucleotide () are produced per glucose?
A
B
C
D
Verified step by step guidance1
Recall the overall process of glycolysis, which converts one molecule of glucose into two molecules of pyruvate, producing ATP and NADH in the process.
Identify the electron carriers involved in glycolysis. Specifically, note that NAD+ is reduced to NADH during the oxidation steps, but FAD (flavin adenine dinucleotide) is not involved in glycolysis.
Understand that FAD is typically reduced to FADH2 in other metabolic pathways such as the citric acid cycle, but not in glycolysis.
Confirm that the only reduced coenzyme produced in glycolysis is NADH, and no FADH2 molecules are generated during this pathway.
Conclude that the number of FADH2 molecules produced per glucose molecule in glycolysis is zero.
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