视频链接待填入 tools/video_links.json
练习讲评 · 糖酵解「步骤 + 产物」
📄 原卷题目


✅ Mark Scheme 得分点(原文)
(a)
- [1]
- hexose bisphosphate / phosphorylated 6C sugar / fructose bisphosphate ;
(b)
- [1]
- hexose energy rich ;
(c)
- does not react easily / AW ;
- phosphorylation activates hexose ;
- maintains concentration gradient of glucose inside and outside cell ;
- [2 max]
- does not enter Krebs cycle ;
(d)
- decarboxylated / CO
- released ;
- forms ethanal ;
- reduced / ref: reduced NAD ;
- to ethanol ;
- reduced NAD does not enter ETC ;
- ref: alcohol dehydrogenase ;
- irreversible ;
- [4 max]