CAPE Biology Unit 2 · May/June 2026 · Paper 2

24 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. 1(a)(i)5 marksOn the diagram in Figure 1, insert the names of the FIVE intermediates shown.
2. 1(a)(ii)2 marksIdentify which TWO of the reactions, labelled W–Z, uses ATP.
3. 1(a)(iii)2 marksState the total number of NADH and pyruvate molecules produced from a single glucose molecule during glycolysis.
4. 1(b)(i)3 marksState THREE ways in which lactic acid fermentation and the method of anaerobic respiration shown in Figure 2 are similar.
5. 1(b)(ii)1 markState the name of the two-carbon molecule which is produced during oxidative decarboxylation of pyruvate.
6. 1(c)8 marksDiscuss TWO ways in which global warming may impact the mangrove ecosystem shown in Figure 3. You MUST present your response in complete paragraphs.
7. 1(c)(iii)5 marksOn the grid provided on page 7, construct a bar graph that shows a comparison between both strains of yeast at the given temperatures.
8. 1(c)(iv)4 marksState TWO conclusions which can be made from the data given in Table 1. You MUST give a reason to support EACH conclusion.
9. 2(a)(i)3 marksName EACH of the following chambers shown in Figure 4.
10. 2(a)(ii)5 marksIn the space provided, draw a detailed drawing of the same size and proportion as the heart specimen shown in Figure 4 on page 10.
11. 2(b)(i)2 marksDefine the term 'transpiration'.
12. 2(b)(ii)6 marksUsing the data given in Figure 5, explain the effect of soil water availability on the transpiration rate of the plants investigated.
13. 2(b)(iii)3 marksExplain how water moves from the soil to Cell 3 in terms of water potential.
14. 2(c)(i)2 marksOutline ONE characteristic of the Casparian strip that allows it to control the movement of water and ions into the xylem of a plant.
15. 2(c)(ii)9 marksWith reference to the data given, explain how changes in suberin levels in the root endodermis allow plants to adapt to environmental stresses such as low salinity, high salinity and nutrient deficiencies. You MUST…
16. 3(a)(i)4 marksState what occurs at the stages labelled I–IV in Figure 9.
17. 3(a)(ii)1 markState the type of immune response that BEST describes phagocytosis.
18. 3(a)(iii)2 marksState TWO reasons why phagocytosis is important.
19. 3(b)(i)4 marksDescribe the function of the following types of T cells.
20. 3(b)(ii)4 marksDescribe the results obtained under natural conditions and therapeutic conditions as shown in Figure 10 on page 20.
21. 3(b)(iii)2 marksState ONE suitable conclusion that can be made based on the results shown in Figure 10. You MUST give a reason to support your conclusion.
22. 3(c)(i)1 markState a suitable hypothesis for this experiment.
23. 3(c)(ii)4 marksSuggest FOUR ways that the procedure could have improved.
24. 3(c)(iii)8 marksDiscuss TWO biological consequences of the progression of heart disease in Country X. Your response for EACH consequence MUST include one social issue and one possible economic issue that would arise if initiatives are…