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A-LevelBiologyEnergy and respiration9700/42 · Feb/Mar 2018 · Q86 Marks

Structures and compounds involved in respiration include: 1 coenzyme A 2 cytoplasm 3 pyruvate 4 NAD 5 outer mitochondrial membrane 6 carrier protein 7 inner mitochondrial membrane 8 intermembrane space of mitochondrion 9 ADP 10 acetyl group Match each of the descriptions with one number chosen from 1 to 10, to show the correct structure or compound. You may use each number once, more than once or not at all. location of ATP synthase transports hydrogen atoms nucleotide with a purine base location of substrate-linked phosphorylation enters the Krebs cycle produced by oxidation of triose phosphate

  1. (a)location of ATP synthase[1]
  2. (b)transports hydrogen atoms[1]
  3. (c)nucleotide with a purine base[1]
  4. (d)location of substrate-linked phosphorylation[1]
  5. (e)enters the Krebs cycle[1]
  6. (f)produced by oxidation of triose phosphate[1]

Mark scheme

Marking points from the official mark scheme (Feb/Mar 2018). The mark or mark type is shown in brackets.

  1. [6] 7;
  2. 4;
  3. 9/4;
  4. 2;
  5. 10;
  6. 3;

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About this question

Topic
Energy and respiration, A-Level Biology (syllabus 9700). Structured question, 6 marks.
Source
A-Level Biology, Feb/Mar 2018 Paper 4 Variant 2, question 8.

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