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8 marksEcological Systems, Biodiversity and Conservations

CAPE Biology Unit 2 · May/June 2026 · Paper 2 · Question 1(c)

Mangrove swamps are self-contained ecosystems. Figure 3 illustrates how global warming may impact this ecosystem.

Discuss TWO ways in which global warming may impact the mangrove ecosystem shown in Figure 3. You MUST present your response in complete paragraphs.

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Other parts of this question

  1. 1(a)(i)On the diagram in Figure 1, insert the names of the FIVE intermediates shown.[5 marks]
  2. 1(a)(ii)Identify which TWO of the reactions, labelled W–Z, uses ATP.[2 marks]
  3. 1(a)(iii)State the total number of NADH and pyruvate molecules produced from a single glucose molecule during glycolysis.[2 marks]
  4. 1(b)(i)State THREE ways in which lactic acid fermentation and the method of anaerobic respiration shown in Figure 2 are similar.[3 marks]
  5. 1(b)(ii)State the name of the two-carbon molecule which is produced during oxidative decarboxylation of pyruvate.[1 mark]
  6. 1(c)(iii)On the grid provided on page 7, construct a bar graph that shows a comparison between both strains of yeast at the given temperatures.[5 marks]
  7. 1(c)(iv)State TWO conclusions which can be made from the data given in Table 1. You MUST give a reason to support EACH conclusion.[4 marks]

More practice: the rest of this paper · more Ecological Systems, Biodiversity and Conservations questions · all CAPE Biology Unit 2 past papers