CSEC Biology · May/June 2005 · Paper 2

34 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 marksIn the space provided below, construct a pie chart to show the relative proportions of the organisms the students found occupying the habitat.
2. 1(a)(ii)2 marksWhat is the advantage of using a pie chart to represent the data in Table 1?
3. 1(a)(iii)1 markIdentify another means besides a table and pie chart to represent the data in Table 1.
4. 1(a)(iv)2 marksIdentify TWO carnivores from the data contained in Table 1 and the pie chart.
5. 1(b)(i)2 marksFrom the organisms the students find in the habitat, identify a food chain with at least FOUR organisms.
6. 1(b)(ii)2 marksSuggest TWO long-term effects on the habitat, if a pair of flycatchers (insect-eating birds) suddenly enter the habitat under study.
7. 1(c)(i)2 marksIdentify TWO features shown in the drawings that can be used to classify the specimens.
8. 1(c)(ii)4 marksIn the space provided below, accurately draw Specimen B twice the size shown in Figure 2. State the magnification of your drawing.
9. 1(d)(i)2 marksBased on the students' observation, suggest a hypothesis for the investigation.
10. 1(d)(ii)4 marksDescribe the investigation you would undertake to test the hypothesis you suggested in (d)(i). Include in your description the apparatus, materials and method you would use.
11. 1(d)(iii)2 marksState TWO environmental factors that affect the rate of photosynthesis.
12. 1(d)(iv)3 marksWrite an equation to adequately represent the processes involved in photosynthesis.
13. 2(a)(i)3 marksLabel Figure 3 to show the position of THREE glands that produce hormones involved in growth and development in humans.
14. 2(a)(ii)6 marksComplete the table below to identify and give the role of the hormones of growth and development produced by the glands you located in (a)(i).
15. 2(b)(i)a)1 markIdentify ONE other type of gland in the human body.
16. 2(b)(i)b)1 markGive ONE example of the type of gland you identified in (b)(i)a) above.
17. 2(b)(ii)2 marksGive ONE similarity and ONE difference between endocrine glands and the type of gland identified in (b)(i).
18. 2(c)(i)1 markGive the name of the process of transfer of the gene.
19. 2(c)(ii)2 marksState ONE advantage of the process you mentioned in (c)(i) above.
20. 3(a)(i)5 marksName the parts of Flowers 1 and 2, labelled I to V, in Figure 4 above.
21. 3(a)(ii)2 marksThe flower structures labelled in Figure 4 are sometimes referred to as 'essential' structures. Suggest ONE reason for the use of the term 'essential' to describe the labelled structures.
22. 3(b)(i)2 marksIdentify the pollinating agent for EACH flower in Figure 4.
23. 3(b)(ii)4 marksIdentify TWO characteristics of EACH flower that are useful in pollination.
24. 3(c)2 marksIn the space provided below, draw in outline TWO simple diagrams to represent the shape of the fruit EACH flower is likely to produce.
25. 4(a)4 marksDescribe the changes taking place at stages II and IV.
26. 4(b)4 marksIdentify TWO mineral salts found in garden soil and explain the role of EACH salt.
27. 4(c)(i)4 marksExplain TWO advantages to the plant of storing food in its seeds.
28. 4(c)(ii)4 marksDescribe TWO situations in the life cycle of a plant when stored food is used.
29. 5(a)(i)3 marksUsing the chart in Figure 6 above, state the genotypes of family members, 1, 2 and 6.
30. 5(a)(ii)1 markIdentify the type of variation involved in the inheritance of earlobe size in humans shown in Figure 6 above.
31. 5(a)(iii)1 markGive ONE reason for the importance of variation among living things.
32. 5(b)3 marksAccount for the fact that in the ABO system, although there are FOUR different blood groups in existence, only THREE alleles determine these blood groups.
33. 5(c)1 markName ONE inherited disease.
34. 5(d)4 marksHow do the treatment and control of an inherited disease differ from the treatment and control of a deficiency disease?