What is the net yield of glycolysis from one molecule of glucose?
Answer and explanation
Correct answer: C. 2 ATP, 2 reduced NAD and 2 pyruvate
- Step 1: Two ATP are used to phosphorylate glucose, and four are made, giving a net gain of 2 ATP. Step 2. Two reduced NAD and two pyruvate are also formed in the cytoplasm. Answer: 2 ATP, 2 reduced NAD and 2 pyruvate. Why not the others: 38 ATP is the overall yield figure quoted for complete respiration; lactate forms only under anaerobic conditions and FAD is reduced later; glycolysis releases no carbon dioxide and 4 ATP is the gross figure.
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