試題詳解

4. Excess alcohol consumption can lead to Wernicke-Korsaff syndrome due to the lack of the vitamin thiamine. Which of the following metabolic conversions cannot occur in the absence of thiamine?
(A) Pyruvate + CO₂ → oxaloacetate
(B) Pyruvate → acetyl-CoA + CO₂
(C) a-ketoglutarate → succinyl-CoA + CO₂
(D) Phosphoenolpyruvate + CO₂ → oxaloacetate
(E) B and C