Question

question 12 (1 point)
what are the net atp totals for one molecule of glucose after both glycolysis and pyruvate oxidation take place?
○ glycolysis = 4, pyruvate oxidation = 1
○ glycolysis = 2, pyruvate oxidation = 0
○ glycolysis = 4, pyruvate oxidation = 0
○ glycolysis = 2, pyruvate oxidation = 2

Explanation:

1. Recall glycolysis: In glycolysis, 2 ATP are used (investment phase) and 4 ATP are produced (payoff phase), so net ATP from glycolysis is \(4 - 2 = 2\).
2. Recall pyruvate oxidation: Pyruvate oxidation (conversion of pyruvate to acetyl - CoA) produces NADH (which can be used to generate ATP in the electron transport chain later) but does not directly produce ATP. So net ATP from pyruvate oxidation is 0.

Answer:

B. glycolysis = 2, pyruvate oxidation = 0