Which Carbon Atom in One of the Glycolytic Intermediates Shown

question 67

Multiple Choice

Which carbon atom in one of the glycolytic intermediates shown below would have to be radiolabeled with ¹⁴C in order to ensure all the radioactivity would be release as ¹⁴CO₂ during alcoholic fermentation?

• A) C6 of glucose 6-phosphate.
• B) C3 of fructose 1,6-bisphosphate.
• C) C1 of pyruvate.
• D) C2 of glyceraldehyde 3-phosphate.
• E) C5 of fructose 6-phosphate.

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