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4 marksCellular Respiration and ATP Synthesis

CAPE Biology Unit 2 · 2014 · Paper 2 · Question 1(a)(i)

Figure 1 shows a diagram of a section of a mitochondrion.

Identify the structures labelled A, B, C and D in Figure 1.

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Other parts of this question

  1. 1(a)(ii)Using an arrow labelled X on Figure 1, indicate the site of the Krebs cycle.[1 mark]
  2. 1(b)(i)Describe the relationship between leaf temperature and net photosynthetic rate at 1935 ppm CO2.[3 marks]
  3. 1(b)(ii)With reference to data presented in Figure 2, explain the effect of the increase in CO2 concentration on the rate of photosynthesis, taking into consideration…[3 marks]
  4. 1(b)(iii)Briefly comment on how an understanding of temperature and carbon dioxide, as limiting factors of photosynthesis, may be used by farmers to increase crop yield…[4 marks]

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