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3 marksCellular Respiration and ATP Synthesis

CAPE Biology Unit 2 · 2017 · Paper 2 · Question 1(a)(ii)

A simplified summary of the stages in glycolysis is given in Figure 1.

Explain the significance of the process labelled X in Figure 1.

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Other parts of this question

  1. 1(a)(i)Identify the reactants or products labelled A, B, C, D, E and F in Figure 1. Write your answers in the relevant spaces in Figure 1.[4 marks]
  2. 1(b)(i)In the box below, draw a labelled diagram to show the detailed structure of a mitochondrion. NOTE: No title is required.[3 marks]
  3. 1(b)(ii)On your diagram, use labelled arrows to identify FOUR key substances of cellular respiration that move out of the mitochondrion.[2 marks]
  4. 1(c)Describe the changes in the two populations during the period.[3 marks]

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