A2 BIO · SPRINT

RS-T08-Q15 · 线粒体「结构—功能对应」

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先自己写完再对答案;卡住的地方回看这段讲解(公开课时间码 28:40–30:40)

例题精讲 · 线粒体「结构—功能对应」

来源 9700_w17_qp_41.pdf → 9700_w17_ms_41.pdf | 小问:全部小问

触发题型:看到 Explain how the structure of mitochondrion relates to its function

📄 原卷题目

RS-T08-Q15 原卷RS-T08-Q15 原卷

✅ Mark Scheme 得分点(原文)

逐条计分:n 分写 n 条;红字为考官明确不接受(Do not accept)

6(a)

  1. contents of dishes
  2. ATP produced
  3. mitochondria + ADP + Pi + acetyl CoA
  4. + oxygen
  5. mitochondria + ADP + Pi + acetyl CoA
  6. mitochondria + ADP + Pi + low
  7. concentration of protons (H+)
  8. mitochondria + ADP + Pi + high
  9. concentration of protons (H+)
  10. ;
  11. ;
  12. 2 or 3 correct = 1 mark
  13. 4 correct = 2 marks

6(b)

  1. two from:
  2. water enters (mitochondrion / matrix) ;
  3. by osmosis / down the water potential gradient ;
  4. membranes ruptured / mitochondrion bursts ;

6(c)

  1. final electron (and proton) acceptor (in ETC) ;

6(d)

  1. ATP synth(et)ase ;
  2. 9700/41
  3. PUBLISHED
  4. October/November
  5. © UCLES 2017
  6. Page 12 of 19
  7. Question
  8. Answer
  9. Marks

6(e)

  1. four from:
  2. (site of) electron transport chain ;
  3. moves / pumps, protons / H+, to inter-membrane space ;
  4. electrochemical / proton / H+, gradient ;
  5. protons / H+, diffuse to matrix ;
  6. through, stalked particles / ATP synth(et)ase ;
  7. ADP + Pi Æ ATP ;
  8. oxidative phosphorylation ;
  9. 9700/41
  10. PUBLISHED
  11. October/November
  12. © UCLES 2017
  13. Page 13 of 19
  14. Question
  15. Answer
  16. Marks
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