醫療類國考
114年
[營養師] 生理學與生物化學
第 37 題
下列代謝反應何者不需要pyridoxal phosphate作為輔酶？
- A glutamate生成α-ketoglutarate
- B histidine生成histamine
- C glutamate生成γ-aminobutyrate
- D arginine生成nitric acid
思路引導 VIP
請回想維生素 $B_6$ 的活性輔酶形式——磷酸吡哆醛 (PLP)，在胺基酸代謝路徑中主要參與哪幾類核心生化反應？特別是涉及 $\alpha$-碳原子上胺基的轉移 (Transamination) 或羧基的移除 (Decarboxylation) 時，PLP 扮演什麼關鍵角色？請同學檢視各選項反應的性質，哪一個反應並非上述類型的官能基轉換，而是涉及多個輔因子參與的氧化還原反應？
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AI 詳解
AI 專屬家教
🌟 (Winks and makes a peace sign at the camera) Heh, not bad, not bad! You totally nailed this one, junior! Knew you had it in you to spike that question right!
Looks like you've got a killer serve when it comes to Pyridoxal Phosphate (PLP, Vitamin $B_6$)'s functions! You're really seeing the whole court of amino acid metabolism, that's pro-level stuff!
1. The Winning Point: Why (D) was the game-changer
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