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Sexual reproduction in plants: Eduqas A‑Level Biology questions

Every Eduqas A-Level Biology exam question on 2.4 Sexual reproduction in plants, 2016–2025, with its mark scheme and examiner’s report.

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2,061 questions

  1. Q2(c)(i)

    June 2025 · Component 2

    2 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2025 Component 2, question 2(c)(i): State two ways in which the appearance of wheat flowers might be different if they were insect-pollinated. [2] I. II.

  2. Q2(c)(ii)

    June 2025 · Component 2

    2 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2025 Component 2, question 2(c)(ii): In some plant species the stamen and stigma mature at different times. Explain the importance of this. [2]

  3. Q4(a)(i)

    June 2025 · Component 2

    1 mark2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2025 Component 2, question 4(a)(i): Name substance X which enters the barley grain in order to start germination. [1]

  4. Q4(a)(ii)

    June 2025 · Component 2

    2 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2025 Component 2, question 4(a)(ii): Name substance Y and state how it moves to the aleurone layer. [2]

  5. Q4(b)(i)

    June 2025 · Component 2

    1 mark2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2025 Component 2, question 4(b)(i): A sharp scalpel was used to cut the grains in half. There is a risk of cutting fingers when using a scalpel to cut the grains. State one way of reducing the ris

  6. Q4(b)(ii)

    June 2025 · Component 2

    4 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2025 Component 2, question 4(b)(ii): Explain the results for: I. Grain A [2] II. Grain B [1] III. Grain C [1]

  7. Q4(c)(i)

    June 2025 · Component 2

    3 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2025 Component 2, question 4(c)(i): Calculate the total dry mass of 420 g of grains. Give your answer to two significant figures. [3] Total dry mass of grains = g

  8. Q4(c)(ii)

    June 2025 · Component 2

    2 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2025 Component 2, question 4(c)(ii): The grains were then soaked in water and allowed to germinate. During the first four days of germination there was a 44% decrease in total dry mass. Explain why

  9. Q7

    June 2025 · Component 2

    9 marks2.4 Sexual reproduction in plants2.2 Genetic information is copied and passed on to daughter cells
    The whole paper ↗
    June 2025 Component 2, question 7: Pollen grain formation in flowering plants involves both mitosis and meiosis. Image 7 shows the stages of meiosis in the formation of pollen grains in an anther

  10. Q5(b)

    June 2024 · Component 2

    2 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2024 Component 2, question 5(b): The elaiosome attracts ants. The seeds are taken into the ants’ underground nest and the elaiosomes are fed to the ants’ larvae while the seeds are discarded. E

  11. Q5(c)(i)

    June 2024 · Component 2

    2 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2024 Component 2, question 5(c)(i): Explain one way that the cracking of the seed coat allows the seed to begin to germinate.  [2]

  12. Q2(c)(i)

    June 2023 · Component 1

    1 mark2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2023 Component 1, question 2(c)(i): State three factors that are required for the germination of seeds. [1]

  13. Q3(b)(i)

    June 2023 · Component 2

    6 marks2.4 Sexual reproduction in plants2.2 Genetic information is copied and passed on to daughter cells
    The whole paper ↗
    June 2023 Component 2, question 3(b)(i): Complete Table 3.3 to state how many chromosomes are present in the following structures shown in Image 3.2 and explain how the structures are formed. [6] Table

  14. Q3(b)(iii)

    June 2023 · Component 2

    1 mark2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2023 Component 2, question 3(b)(iii): Describe what happens to the structures labelled X in Image 3.2 after fertilisation.  [1]

  15. Q2(b)(ii)

    June 2022 · Component 1

    2 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2022 Component 1, question 2(b)(ii): Explain why the generation of heat helps to increase genetic diversity in this species. [2]

  16. Q2(a)(i)

    June 2022 · Component 2

    4 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2022 Component 2, question 2(a)(i): Describe how the production of amylase was triggered in the barley seeds. [4]

  17. Q2(a)(ii)

    June 2022 · Component 2

    2 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2022 Component 2, question 2(a)(ii): Explain why it was important that the same concentration of agar and the same concentration of starch were used in all Petri dishes. [2]

  18. Q2(b)(i)

    June 2022 · Component 2

    2 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2022 Component 2, question 2(b)(i): Measure the maximum diameter of each clear area and add the results to Table 2.2. Calculate the mean diameter of the clear area after 9 days of germination. [2]

  19. Q2(b)(ii)

    June 2022 · Component 2

    5 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2022 Component 2, question 2(b)(ii): Plot the mean results from Table 2.2 on the grid below. Include range bars for each set of results. [5]

  20. Q2(b)(iii)

    June 2022 · Component 2

    2 marks2.4 Sexual reproduction in plants
    The whole paper ↗
    June 2022 Component 2, question 2(b)(iii): Explain why range bars are drawn on a graph. [2]
All 50 questions on Sexual reproduction in plants, as a list
  1. June 2025, Component 2, Q2(c)(i) (2 marks): State two ways in which the appearance of wheat flowers might be different if they were insect-pollinated. [2] I. II.
  2. June 2025, Component 2, Q2(c)(ii) (2 marks): In some plant species the stamen and stigma mature at different times. Explain the importance of this. [2]
  3. June 2025, Component 2, Q4(a)(i) (1 mark): Name substance X which enters the barley grain in order to start germination. [1]
  4. June 2025, Component 2, Q4(a)(ii) (2 marks): Name substance Y and state how it moves to the aleurone layer. [2]
  5. June 2025, Component 2, Q4(b)(i) (1 mark): A sharp scalpel was used to cut the grains in half. There is a risk of cutting fingers when using a scalpel to cut the grains. State one way of reducing the ris
  6. June 2025, Component 2, Q4(b)(ii) (4 marks): Explain the results for: I. Grain A [2] II. Grain B [1] III. Grain C [1]
  7. June 2025, Component 2, Q4(c)(i) (3 marks): Calculate the total dry mass of 420 g of grains. Give your answer to two significant figures. [3] Total dry mass of grains = g
  8. June 2025, Component 2, Q4(c)(ii) (2 marks): The grains were then soaked in water and allowed to germinate. During the first four days of germination there was a 44% decrease in total dry mass. Explain why
  9. June 2025, Component 2, Q7 (9 marks): Pollen grain formation in flowering plants involves both mitosis and meiosis. Image 7 shows the stages of meiosis in the formation of pollen grains in an anther
  10. June 2024, Component 2, Q5(b) (2 marks): The elaiosome attracts ants. The seeds are taken into the ants’ underground nest and the elaiosomes are fed to the ants’ larvae while the seeds are discarded. E
  11. June 2024, Component 2, Q5(c)(i) (2 marks): Explain one way that the cracking of the seed coat allows the seed to begin to germinate.  [2]
  12. June 2023, Component 1, Q2(c)(i) (1 mark): State three factors that are required for the germination of seeds. [1]
  13. June 2023, Component 2, Q3(b)(i) (6 marks): Complete Table 3.3 to state how many chromosomes are present in the following structures shown in Image 3.2 and explain how the structures are formed. [6] Table
  14. June 2023, Component 2, Q3(b)(iii) (1 mark): Describe what happens to the structures labelled X in Image 3.2 after fertilisation.  [1]
  15. June 2022, Component 1, Q2(b)(ii) (2 marks): Explain why the generation of heat helps to increase genetic diversity in this species. [2]
  16. June 2022, Component 2, Q2(a)(i) (4 marks): Describe how the production of amylase was triggered in the barley seeds. [4]
  17. June 2022, Component 2, Q2(a)(ii) (2 marks): Explain why it was important that the same concentration of agar and the same concentration of starch were used in all Petri dishes. [2]
  18. June 2022, Component 2, Q2(b)(i) (2 marks): Measure the maximum diameter of each clear area and add the results to Table 2.2. Calculate the mean diameter of the clear area after 9 days of germination. [2]
  19. June 2022, Component 2, Q2(b)(ii) (5 marks): Plot the mean results from Table 2.2 on the grid below. Include range bars for each set of results. [5]
  20. June 2022, Component 2, Q2(b)(iii) (2 marks): Explain why range bars are drawn on a graph. [2]
  21. June 2022, Component 2, Q2(c) (3 marks): Image 2.3 shows barley grains at different stages of germination. Image 2.3 embryo shoot embryo roots 0 1 3 5 6 8 days of germination Using the information prov
  22. June 2022, Component 2, Q7 (9 marks): The dandelion (Taraxacum officinale) is a common plant in the UK. It is classified as a weed as it can spread easily and quickly and is very difficult to eradic
  23. Autumn 2021, Component 2, Q3(d) (4 marks): Apple trees produce pollen grains that are chemically self-incompatible with their own stigmas. To produce apples their flowers must be pollinated by pollen fro
  24. Autumn 2020, Component 2, Q1(b)(i) (2 marks): Name the male reproductive organs and explain how their removal would encourage cross-pollination. [2]
  25. Autumn 2020, Component 2, Q1(b)(ii) (1 mark): Suggest how Mendel could have prevented cross-pollination. Explain your answer. [1]
  26. Autumn 2020, Component 2, Q3(a) (2 marks): State how many chromosomes would be in the following cells during different stages of the life cycle of a commercially grown strawberry plant. [2] a cell in the
  27. Autumn 2020, Component 2, Q4(a)(i) (3 marks): Using the letters X, Y and Z, identify the following: [3] I. the structure that would stain blue-black on application of iodine solution. II. the source of gibb
  28. Autumn 2020, Component 2, Q4(a)(ii) (2 marks): Most rice consumed in Asian countries is white rice. In some areas rice makes up 80 to 90% of the diet. Suggest how and why the processing of rice has led to re
  29. Autumn 2020, Component 3, Q5(c)(ii) (2 marks): Using your knowledge of plant reproduction, suggest two reasons why more sucrose is transported to the fruit rather than other parts of the plant. [2]
  30. June 2019, Component 2, Q6(c)(i) (3 marks): State how reproducibility is represented on Figure 6.2 and comment on the reproducibility of the data obtained. [3]
  31. June 2019, Component 2, Q6(c)(ii) (3 marks): Name a mathematical value that each team could have calculated to indicate the variability of its results and the aspect of reliability of the experiments that
  32. June 2019, Component 2, Q6(c)(iii) (1 mark): Identify a statistical test that could have been used to test if the mean results from teams 1 and 3 were significantly different. [1]
  33. June 2019, Component 2, Q6(c)(iv) (2 marks): The solid line on Figure 6.2 shows the rate of production of amylase in the barley grains. Explain what evidence from the graph supports the hypothesis that the
  34. June 2019, Component 2, Q7(a)(i) (3 marks): One structure is shown in the micrograph in Figure 7.1 but missing from the low power plan in Figure 7.2. Draw this structure on the low power plan. Label it wi
  35. June 2019, Component 2, Q7(a)(ii) (1 mark): In the rectangle provided below, which contains a sketch of the whole section, indicate which part is shown in the tissue plan in Figure 7.2. [1]
  36. June 2019, Component 2, Q7(b) (4 marks): Use the measurement lines on Figure 7.2 and the measurements given for the photomicrograph in Figure 7.1 to deduce whether the low power plan in Figure 7.2 is i
  37. June 2019, Component 2, Q7(c)(i) (5 marks): Describe the part played by mitosis and meiosis in the formation of the male gametes in flowering plants, explaining the biological significance of each type of
  38. June 2019, Component 2, Q7(c)(ii) (1 mark): State the function of the tapetum. [1] Figure 7.3 shows an anther undergoing dehiscence. Figure 7.3
  39. June 2019, Component 2, Q7(d) (3 marks): Use the photomicrograph in Figure 7.3 and the low power plan in Figure 7.2 to suggest the significance of a line of weakness in the position shown on the drawin
  40. June 2019, Component 2, Q8 (9 marks): Figure 8.1 shows a bumble bee collecting nectar from a flower of Primula vulgaris. Figure 8.1 proboscis There are two different forms of these flowers. Each pla
  41. June 2018, Component 2, Q3(a)(i) (1 mark): Name the parts labelled P and Q. [1] P Q
  42. June 2018, Component 2, Q3(a)(ii) (2 marks): Calculate the actual length of structure P. [2] Size = mm
  43. June 2018, Component 2, Q3(a)(iii) (1 mark): Describe two features of the flower shown in the photograph which suggest it is wind pollinated. [1]
  44. June 2018, Component 2, Q3(b)(i) (2 marks): Use information shown in the diagram to explain why the grain is more correctly described as a fruit rather than a seed. [2]
  45. June 2018, Component 2, Q3(b)(ii) (2 marks): Explain why the events taking place in the embryo sac of a wheat flower are described as a double fertilisation. [2]
  46. June 2018, Component 2, Q3(c)(iii) (2 marks): Using the information given and your own knowledge, describe how the seed of field mustard differs from the wheat grain in terms of where it stores nutrients. [
  47. June 2017, Component 2, Q2(a)(iv) (3 marks): Plot a graph of the results using a suitable scale for the y-axis. [3] 0 10 20 30 40 50 60 Time / mins
  48. June 2017, Component 2, Q2(a)(v) (1 mark): How could you make the data more reliable? [1]
  49. June 2017, Component 2, Q2(b) (4 marks): Using the technique described on page 5, design an experiment to investigate the effect of pH on the growth of pollen tubes. Give a brief description of your me
  50. June 2017, Component 2, Q2(c) (4 marks): Describe the roles of the vesicle and the labelled organelles in the passage of the pollen tubes through the style of a flower. [4]

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