Multiple Choice
In aerobic glycolysis (per molecule of glucose), what is the primary end product formed at the end of the pathway?
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Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway
Glycolysis 4
Multiple Choice
In glycolysis, what is the final product formed from one molecule of glucose under aerobic conditions?
A
Two molecules of acetyl-CoA
B
Two molecules of lactate
C
One molecule of oxaloacetate
D
Two molecules of pyruvate
Verified step by step guidance1
Recall the overall pathway of glycolysis, which is the metabolic process that breaks down one molecule of glucose (a 6-carbon sugar) into smaller molecules to extract energy.
Understand that glycolysis occurs in the cytoplasm and does not require oxygen (anaerobic process), but the question specifies aerobic conditions, which means oxygen is present for subsequent metabolism.
Identify the key intermediate products of glycolysis: glucose is first converted into two molecules of glyceraldehyde-3-phosphate, which are then processed to form two molecules of pyruvate (each containing 3 carbons).
Note that under aerobic conditions, pyruvate is transported into the mitochondria where it is converted into acetyl-CoA before entering the citric acid cycle, but glycolysis itself ends with pyruvate as the final product.
Therefore, the final product of glycolysis from one molecule of glucose under aerobic conditions is two molecules of pyruvate.
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