Reproduction · CSEC Biology

87 past-paper questions on Reproduction, part of Life Processes and Disease, from every CSEC Biology paper on Quelpr.

1. 1(a)(i)2 marks· Biology Q1 1(a)(i)Identify the type of reproduction carried out by EACH of the plant organs shown in Figure 1. A: B:
2. 1(a)(ii)3 marks· Biology Q1 1(a)(ii)Outline the sequence of events that would take place from pollination to the formation of the seed/fruit from the organ shown in Figure 1B.
3. 1(e)(i)3 marks· Biology Q1 1(e)(i)On the diagram in Figure 2, label the following parts using the symbols indicated: P for the place where pollen is produced, O for the place that houses the ovum, S where pollen is deposited.
4. 1(e)(ii)3 marks· Biology Q1 1(e)(ii)Suggest how this flower might be pollinated. Explain your answer.
5. 1(f)4 marks· Biology Q1 1(f)Some plant storage organs give rise to offspring. Suggest TWO advantages to the plant of having both flowers, and a storage organ that gives rise to offspring.
6. 2(a)(i)1 mark· Biology Q2 2(a)(i)Name the part of the plant in Figure 1 that is responsible for Support of the stem.
7. 2(a)(ii)1 mark· Biology Q2 2(a)(ii)Name the part of the plant in Figure 1 that is responsible for Sexual reproduction.
8. 2(a)(iii)1 mark· Biology Q2 2(a)(iii)Name the part of the plant in Figure 1 that is responsible for Development of the embryo.
9. 2(b)(i)2 marks· Biology Q2 2(b)(i)State the method of fruit dispersal for the plant in Figure 1, and give ONE reason to support your answer.
10. 2(b)(ii)2 marks· Biology Q2 2(b)(ii)State TWO functions of oestrogen.
11. 3(a)(i)3 marks· Biology Q3 3(a)(i)Identify Hormones X and Y and the event occurring at Z.
12. 3(a)(i)2 marks· Biology Q3 3(a)(i)Indicate on EACH flower in Figure 3, the parts that give rise to the male gametes. Use a label line and the letter, M.
13. 3(a)(i)4 marks· Biology Q3 3(a)(i)Using the numbers I - IV, label Figure 3 to indicate where in the menstrual cycle EACH of the following events occur: a) Uterus wall builds up as oestrogen level rises (I) b) Many blood vessels develop (II) c) Shedding…
14. 3(a)(i)5 marks· Biology Q3 3(a)(i)Name the parts of Flowers 1 and 2, labelled I to V, in Figure 4 above.
15. 3(a)(ii)2 marks· Biology Q3 3(a)(ii)What is the role of EACH hormone in the menstrual cycle?
16. 3(a)(ii)2 marks· Biology Q3 3(a)(ii)Suggest the agent of pollination for EACH flower. X Y
17. 3(a)(ii)2 marks· Biology Q3 3(a)(ii)The 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.
18. 3(a)(ii)3 marks· Biology Q3 3(a)(ii)Identify TWO hormones involved in the menstrual cycle and give the function of any ONE.
19. 3(a)(iii)4 marks· Biology Q3 3(a)(iii)What TWO features of EACH flower make them suited for the type of pollinating agent suggested in (ii) above? X Y
20. 3(a)(iii)2 marks· Biology Q3 3(a)(iii)Name the organ that produces Hormones X and Y.
21. 3(a)(iv)4 marks· Biology Q3 3(a)(iv)Discuss the fate of the following structures shown in Figure 4 if fertilization of the ovum occurs: Corpus luteum, Uterus lining.
22. 3(b)3 marks· Biology Q3 3(b)State THREE functions of the placenta during development of the foetus.
23. 3(b)5 marks· Biology Q3 3(b)Describe the sequence of events which takes place after pollination to give rise to a fruit.
24. 3(b)1 mark· Biology Q3 3(b)Some contraceptive pills contain hormones. Suggest how this may prevent pregnancy.
25. 3(b)(i)3 marks· Biology Q3 3(b)(i)Name the parts labelled A, B and C in Figure 3.
26. 3(b)(i)2 marks· Biology Q3 3(b)(i)Label the parts in Figure 3 where sex cells/gametes are found.
27. 3(b)(i)2 marks· Biology Q3 3(b)(i)Name ONE method of dispersal for EACH of the following: Red pea (Red kidney bean) Coconut
28. 3(b)(i)2 marks· Biology Q3 3(b)(i)Identify the pollinating agent for EACH flower in Figure 4.
29. 3(b)(ii)2 marks· Biology Q3 3(b)(ii)Suggest TWO features of the coconut shown in Figure 4 that are important in its dispersal.
30. 3(b)(ii)4 marks· Biology Q3 3(b)(ii)Identify TWO characteristics of EACH flower that are useful in pollination.
31. 3(c)2 marks· Biology Q3 3(c)In the space provided below, draw in outline TWO simple diagrams to represent the shape of the fruit EACH flower is likely to produce.
32. 3(c)2 marks· Biology Q3 3(c)Suggest TWO methods of dispersal of the seeds found inside this fruit.
33. 3(c)3 marks· Biology Q3 3(c)A drug company is developing a male contraceptive pill. Suggest THREE ways in which this could prevent pregnancy.
34. 3(c)(i)2 marks· Biology Q3 3(c)(i)Explain how ONE structure in Figure 3 can be manipulated to achieve permanent sterility in males.
35. 3(c)(i)3 marks· Biology Q3 3(c)(i)State THREE birth control methods practised by human beings.
36. 3(c)(i)1 mark· Biology Q3 3(c)(i)Identify the method of dispersal of the thorn apple fruit shown in Figure 5.
37. 3(c)(ii)2 marks· Biology Q3 3(c)(ii)Explain how tubal ligation results in sterility in females.
38. 3(c)(ii)2 marks· Biology Q3 3(c)(ii)Suggest why birth control seems more important in humans than in other populations of mammals.
39. 3(c)(ii)2 marks· Biology Q3 3(c)(ii)Suggest why thorn apple plants are usually found growing in clusters around the parent plant.
40. 3(d)4 marks· Biology Q3 3(d)Explain TWO ways in which this method of reproduction is different from reproduction in humans.
41. 4(a)6 marks· Biology Q4 4(a)In the box below, draw a labelled diagram of the female reproductive system, and using an arrow, trace the path that a spermatozoon would have to take to fertilize an ovum.
42. 4(a)5 marks· Biology Q4 4(a)Label the diagrams to show FIVE structures involved in gamete production and transfer.
43. 4(a)(i)8 marks· Biology Q4 4(a)(i)Complete Table 2 below by writing the name and function of EACH of the structures labelled I, II, IV and VI.
44. 4(a)(i)6 marks· Biology Q4 4(a)(i)Complete Figure 7 by labelling SIX parts of the fruit.
45. 4(a)(ii)2 marks· Biology Q4 4(a)(ii)Explain why III and V, shown in Figure 5, may be described as having similar functions.
46. 4(a)(ii)2 marks· Biology Q4 4(a)(ii)The seeds of the fruit shown in Figure 7 are dispersed by animals. Identify TWO ways in which these seeds are adapted for this process.
47. 4(b)5 marks· Biology Q4 4(b)A young couple wants to choose between two contraceptive methods — barrier or surgical. Discuss why the male may prefer the barrier method rather than the surgical method of contraception. Your answer should include TWO…
48. 4(b)(i)1 mark· Biology Q4 4(b)(i)Place an X on the diagram to show where fertilization takes place.
49. 4(b)(i)1 mark· Biology Q4 4(b)(i)Name the product of fertilization.
50. 4(b)(i)1 mark· Biology Q4 4(b)(i)What type of dispersal is shown by the fruit illustrated in Figure 8?
51. 4(b)(ii)2 marks· Biology Q4 4(b)(ii)Outline the route a spermatozoon (sperm) must travel from its origin in order to fertilize an egg.
52. 4(b)(ii)4 marks· Biology Q4 4(b)(ii)Give TWO reasons why the plant parts illustrated in Figures 7 and 8 are classified by biologists as fruits.
53. 4(b)(ii)a)2 marks· Biology Q4 4(b)(ii)a)What becomes of the product of fertilization in humans?
54. 4(b)(ii)b)2 marks· Biology Q4 4(b)(ii)b)What becomes of the product of fertilization in flowering plants?
55. 4(b)(iii)2 marks· Biology Q4 4(b)(iii)Explain how it is possible for an egg to be fertilized but fail to result in a successful pregnancy.
56. 4(c)4 marks· Biology Q4 4(c)A biologist discovers that the flowers of a species of plants have no male reproductive parts. Suggest ONE method by which these plants produce offspring, and THREE advantages of this method.
57. 4(c)3 marks· Biology Q4 4(c)Suggest ONE similarity and TWO differences in the ways in which the ovary in humans and in plants functions.
58. 4(c)2 marks· Biology Q4 4(c)Identify TWO ways in which the male and female reproductive organs illustrated in Figure 5 function differently from each other.
59. 4(c)(i)2 marks· Biology Q4 4(c)(i)Name TWO reproductive hormones produced by a woman.
60. 4(c)(i)1 mark· Biology Q4 4(c)(i)Into what structure will the ovule develop?
61. 4(c)(ii)4 marks· Biology Q4 4(c)(ii)Explain how the hormones named in (c)(i) on page 9 enable successful reproduction in humans.
62. 4(c)(ii)2 marks· Biology Q4 4(c)(ii)Name TWO features which will show that the structure you identified at (c)(i) developed from an ovule.
63. 5(a)6 marks· Biology Q5 5(a)Describe the location and structure of the normal human female reproductive system.
64. 5(b)3 marks· Biology Q5 5(b)Suggest ONE temporary contraceptive method that the couple could use to prevent pregnancy at EACH of the following stages: Preventing fertilization, Preventing ovulation, Preventing implantation.
65. 5(c)6 marks· Biology Q5 5(c)Explain how EACH contraceptive method suggested in (b) works to prevent pregnancy at each of the following stages.
66. 6(a)6 marks· Biology Q6 6(a)With the aid of a labelled diagram, describe the structure of the human male reproductive system. Indicate on the diagram the structure that produces gametes, and the structures that transport the gametes to allow…
67. 6(a)6 marks· Biology Q6 6(a)Using annotated diagrams, compare the structure of a wind-pollinated flower with that of an insect-pollinated flower.
68. 6(a)(i)6 marks· Biology Q6 6(a)(i)Draw a diagram to show the relative positions of the ovaries, uterus, oviduct and cervix of the human female reproductive system.
69. 6(a)(ii)6 marks· Biology Q6 6(a)(ii)Annotate the diagram to identify the functions of the labelled parts.
70. 6(b)4 marks· Biology Q6 6(b)Describe the process by which the male gamete reaches the female gamete in a flower.
71. 6(b)5 marks· Biology Q6 6(b)Plants that reproduce sexually have some advantages compared to those that reproduce only asexually. Outline TWO advantages and THREE disadvantages of sexual reproduction.
72. 6(b)(i)6 marks· Biology Q6 6(b)(i)Explain TWO ways in which humans make use of the plants' ability to reproduce asexually.
73. 6(b)(i)4 marks· Biology Q6 6(b)(i)Name ONE method of contraception that works by preventing fertilization. Explain how EACH of the methods named above functions to prevent pregnancy.
74. 6(b)(i)6 marks· Biology Q6 6(b)(i)Identify TWO means by which seeds are dispersed.
75. 6(b)(i)6 marks· Biology Q6 6(b)(i)Two hormones associated with the reproductive cycle of the female are oestrogen and progesterone. What are TWO likely consequences of limited production of these hormones?
76. 6(b)(ii)1 mark· Biology Q6 6(b)(ii)Give TWO advantages to humans of asexual reproduction in plants.
77. 6(b)(ii)4 marks· Biology Q6 6(b)(ii)Name ONE method of contraception that works by preventing ovulation. Explain how EACH of the methods named above functions to prevent pregnancy.
78. 6(b)(ii)6 marks· Biology Q6 6(b)(ii)Women of reproductive age are generally advised not to smoke cigarettes. Identify TWO ways in which smoking is likely to harm the developing foetus.
79. 6(b)(ii)6 marks· Biology Q6 6(b)(ii)Explain how any TWO characteristics of a seed may be adapted for dispersal.
80. 6(c)5 marks· Biology Q6 6(c)Compare the means by which the gametes are brought together in flowering plants with the means by which the gametes are brought together in humans.
81. 6(c)(i)3 marks· Biology Q6 6(c)(i)State ONE disadvantage of using condoms.
82. 6(c)(ii)3 marks· Biology Q6 6(c)(ii)Suggest TWO reasons why choosing a birth control method can be a more difficult issue for the female partner in a marriage than the male.
83. 2(a)2 marks· CSEC Biology · May/June 2021 · Paper 2Define the term 'pollination'.
84. 2(b)2 marks· CSEC Biology · May/June 2021 · Paper 2Describe how male gametes reach female gametes in humans.
85. 2(c)3 marks· CSEC Biology · May/June 2021 · Paper 2Label each of the following parts on the diagram: stigma, style, ovary and ovule.
86. 2(d)4 marks· CSEC Biology · May/June 2021 · Paper 2Explain why a human embryo does not have large nutrient stores but a plant embryo does.
87. 2(e)4 marks· CSEC Biology · May/June 2021 · Paper 2Suggest four reasons why a couple would be advised to use the permanent method of birth control for the male rather than the permanent method for the female.