Quelpr
5 marksCellular Respiration and ATP Synthesis

CAPE Biology Unit 2 · May/June 2019 · Paper 2 · Question 1(b)(i)

Mitochondria are important for making energy available within cells. Figure 2 is an incomplete diagram of the longitudinal section of a mitochondrion showing only the outer membrane.

Complete the diagram in Figure 2 and include labels to illustrate the structure of a mitochondrion.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 1(a)(i)Illustrate the flow of energy and nutrients through ecosystems by providing labels for A-F in the flow chart in Figure 1.[5 marks]
  2. 1(a)(ii)Explain the importance of energy flow in an ecosystem.[4 marks]
  3. 1(a)(iii)Explain why only a small percentage of the energy from sunlight that reaches terrestrial environments enters the ecosystem.[8 marks]
  4. 1(b)(ii)Explain how the structure of the mitochondrion is important for its function in respiration.[8 marks]

More practice: the rest of this paper · more Cellular Respiration and ATP Synthesis questions · all CAPE Biology Unit 2 past papers