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练习讲评 · Link reaction「丙酮酸氧化脱羧」
📄 原卷题目



✅ Mark Scheme 得分点(原文)
1(d)(i)
- oxygen ;
1(d)(ii)
- presence of oxygen:
- (ATP yield) increases / is higher ;
- plus any two from:
- oxygen acts as final, electron / proton, acceptor ;
- oxidative phosphorylation / chemiosmosis (occurs) ;
- energy from, reduced NAD / reduced FAD / electron transport chain ;
- proton gradient / H+ → into intermembrane space ;
- ATP made in Krebs cycle ;