CAPE Biology Unit 1 · 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)4 marksComplete the alpha and beta glucose structures on Figure 1 by correctly adding the missing OH and H groups.
2. 1(a)(ii)2 marksOn the diagram provided in Figure 2, complete the structure of the other monosaccharide which makes up sucrose.
3. 1(a)(iii)1 markState the name of the monosaccharide which makes up sucrose, other than glucose.
4. 1(a)(iv)5 marksOutline a suitable procedure for determining if a new snack in a school cafeteria, made from legume chickpeas, contains starch and proteins, utilizing all of the listed apparatus and material.
5. 1(a)(v)1 markA sample of chickpea snack was mixed with 2 ml absolute ethanol, shaken, allowed to settle, and the ethanol decanted into a tube with 2 ml cold water. The solution remained colourless. State a suitable conclusion based…
6. 1(b)(i)3 marksIdentify the THREE components labelled L, M, and N on Cell I.
7. 1(b)(ii)4 marksOutline how any TWO visible features of the eukaryotic cells shown in Figure 3 support the endosymbiont theory.
8. 1(b)(iii)2 marksState the function of any ONE named cellular component which is visible in ALL three cells.
9. 1(c)8 marksDiscuss how the molecular structure of corn starch and the molecular structure of cellulose explain the data shown in Table 1. Present your response in complete paragraphs covering corn starch and cellulose.
10. 2(a)(i)4 marksComplete Table 2 by identifying the differences between DNA and RNA regarding sugar component and stability.
11. 2(a)(ii)2 marksState the location of mRNA and DNA in a cell.
12. 2(a)(iii)3 marksExplain how complementary base pairing ensures the accurate replication of DNA.
13. 2(a)(iv)3 marksDuring transcription, the template strand of DNA contained 34% cytosine and 16% adenine bases. Determine the percentages of Guanine, Uracil, and Thymine in the strand of mRNA formed.
14. 2(b)(i)5 marksOn the grid provided on page 11, plot the data provided in Table 3 as a bar graph, with the mutation type on the x-axis.
15. 2(b)(ii)3 marksState THREE possible deductions based on the results of the study shown in Table 3.
16. 2(c)(i)1 markState ONE role of the template strand of DNA during transcription.
17. 2(c)(ii)9 marksExplain how EACH mutation shown in Figure 4 (Mutation X, Mutation Y, and Mutation Z) could affect the polypeptide formed during gene expression, using the information given in Table 4.
18. 3(a)(i)4 marksIdentify the FOUR cells labelled S, T, U, and V in Figure 5.
19. 3(a)(ii)2 marksState TWO parts of the sperm cell that will enter the interior of the oocyte during fertilization.
20. 3(a)(iii)5 marksIn the box provided, draw a diagram of the section of the seminiferous tubule shown in the boxed area in Figure 5.
21. 3(a)(iv)4 marksDescribe the changes a sperm undergoes during its journey in the female tract to prepare for fertilization: Capacitation and Acrosomal reaction.
22. 3(b)(i)2 marksBased on the results shown in Figure 6, state whether or not the CuIUD would be effective in preventing unwanted pregnancies, giving one reason to support your response.
23. 3(b)(ii)4 marksBased on the results of the study and additional observations of tissue inflammation and post-removal fertility, state TWO possible conclusions regarding the use of the zinc IUD contraceptive method, giving a reason for…
24. 3(c)9 marksDiscuss how the stages shown in Figure 7 lead to the development of the seed coat, endosperm, and embryo after fertilization. Present your response in complete paragraphs for Seed coat, Endosperm, and Embryo.