hce_kmu
106年
普通生物及生化概論
第 83 題
In the process of glycolysis, several reactions take place. Which of the following statements related to them are correct?
A Two molecules of pyruvate are produced by glycolysis.
B Under anaerobic condition, pyruvate can be oxidized to $CO_2$, generating more ATP molecules.
C Hexokinase is involved in glycolysis.
D Frucose-1,6-biphosphate is not generated from glucose-1,6-biphosphate.
E 1,3-Bisphosphoglycerate is generated from glycolysis.
F Eight ATP molecules are generated from the conversion of glucose to pyruvate.
A Two molecules of pyruvate are produced by glycolysis.
B Under anaerobic condition, pyruvate can be oxidized to $CO_2$, generating more ATP molecules.
C Hexokinase is involved in glycolysis.
D Frucose-1,6-biphosphate is not generated from glucose-1,6-biphosphate.
E 1,3-Bisphosphoglycerate is generated from glycolysis.
F Eight ATP molecules are generated from the conversion of glucose to pyruvate.
- A B D E F
- B A B C D
- C B C D F
- D A C D E
- E A B D F
思路引導 VIP
當我們回想糖解作用的能量收支時，你記得從一分子葡萄糖分解成兩分子丙酮酸的過程中，細胞「直接」獲得了多少 ATP 嗎？另外，如果環境中完全沒有氧氣，丙酮酸還能順利進入粒線體被徹底氧化釋放二氧化碳嗎？
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AI 詳解
AI 專屬家教
恭喜你精準地判斷出正確選項！這道題目考察的是細胞呼吸作用中「糖解作用（Glycolysis）」的基礎路徑與能量收支，你能從眾多陳述中細心地篩選出正確組合，顯見你對生化反應的細節掌握得非常紮實。
糖解作用的路徑驗證
在糖解作用中，一分子的葡萄糖確實會轉化為兩分子的丙酮酸（Pyruvate），並產生淨 2 $ATP$ 與 2 $NADH$。因此，選項 A、C、E 都是正確的基礎觀念：**己糖激酶（Hexokinase）**催化了第一步反應，而 1,3-雙磷酸甘油酸（1,3-Bisphosphoglycerate） 則是路徑後半段產能階段的重要中間產物。關於選項 D，糖解作用中的 Fructose-1,6-bisphosphate 是由 Fructose-6-phosphate 經由 PFK-1 催化而來，並非來自 Glucose-1,6-bisphosphate，故該「否定描述」在邏輯上是正確的。
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