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6 marksCellular Respiration and ATP Synthesis

CAPE Biology Unit 2 · May/June 2024 · Paper 2 · Question 1(a)(iii)

Figure 1 shows a drawing of a mitochondrion as seen under an electron microscope, with structures labeled Q, R, and S.

Identify the name and function of the structures labelled Q, R and S in Figure 1.

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  1. 1(a)(i)List THREE products of the link reaction.[3 marks]
  2. 1(a)(ii)State the site of the link reaction.[1 mark]
  3. 1(a)(iv)Complete the diagram below to identify the reduced molecules produced. You MUST include the arrows to show where the molecules were produced in the Kreb's…[5 marks]
  4. 1(b)(i)State a suitable hypothesis for the experiment.[2 marks]
  5. 1(b)(ii)State a suitable control for the experiment.[1 mark]
  6. 1(b)(iii)Identify the manipulated and responding variable in this experiment.[2 marks]
  7. 1(b)(iv)Using the data in Table 1, identify which of the two beans respired faster.[1 mark]
  8. 1(c)Explain the function of EACH of the following microorganisms in maintaining tropical rainforest ecosystems as self-sustaining units. You MUST present your…[9 marks]

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