Multiple Choice
During glycolysis, one molecule of glucose is ultimately broken down into which 3-carbon compound?
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Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway
Glycolysis 1
Multiple Choice
In the glycolytic pathway, how many molecules of NADH are produced per molecule of glucose converted to pyruvate?
A
NADH
B
NADH
C
NADH
D
NADH
Verified step by step guidance1
Recall that glycolysis is the metabolic pathway that converts one molecule of glucose into two molecules of pyruvate.
Understand that during glycolysis, specific enzymatic steps involve the reduction of NAD+ to NADH, which is a key electron carrier.
Identify the step in glycolysis where NAD+ is reduced: this occurs during the conversion of glyceraldehyde-3-phosphate (G3P) to 1,3-bisphosphoglycerate, catalyzed by glyceraldehyde-3-phosphate dehydrogenase.
Since one glucose molecule produces two molecules of G3P, and each G3P produces one NADH, multiply the number of NADH produced per G3P by 2 to account for both molecules.
Conclude that the total NADH produced per glucose molecule during glycolysis is the product of NADH per G3P times 2.
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