Skip to content
Try on iPad

Inorganic ions: Edexcel A‑Level Biology B questions

Every Edexcel A-Level Biology B exam question on 1.6 Inorganic ions, 2016–2025, with its mark scheme and examiner’s report.

Find questions1,826
Calculations

1,826 questions

  1. Q8(a)

    June 2025 · Paper 1

    1 mark1.6 Inorganic ions
    The whole paper ↗
    June 2025 Paper 1, question 8(a): Which pair of molecules contains nitrogen atoms? (1) A carbohydrates and lipids B lipids and nucleic acids C nucleic acids and proteins D proteins and carbohydr

  2. Q7(c)

    June 2025 · Paper 3

    2 marks1.6 Inorganic ions
    The whole paper ↗
    June 2025 Paper 3, question 7(c): The phosphatase enzyme catalyses the removal of phosphate groups from organic phosphate molecules, releasing phosphate ions. Give two examples of biochemical pr

  3. Q6(b)

    June 2024 · Paper 3

    3 marks1.6 Inorganic ions
    The whole paper ↗
    June 2024 Paper 3, question 6(b): In another investigation, the student grew duckweed plants in water containing a fertiliser. The fertiliser contained nitrate, phosphate and magnesium ions. Thr

  4. Q1(a)(i)

    June 2024 · AS Paper 1

    1 mark1.6 Inorganic ions
    The whole paper ↗
    June 2024 AS Paper 1, question 1(a)(i): Magnesium ions and nitrate ions are incorporated into molecules made by the plant. Which row in the table shows the molecules that incorporate these ions? (1) a

  5. Q1(a)(i)

    June 2023 · Paper 1

    1 mark1.6 Inorganic ions
    The whole paper ↗
    June 2023 Paper 1, question 1(a)(i): Name the molecule that contains calcium ions in the cell walls of a plant. (1)

  6. Q1(a)(ii)

    June 2023 · Paper 1

    1 mark1.6 Inorganic ions
    The whole paper ↗
    June 2023 Paper 1, question 1(a)(ii): How many of the following statements are correct? (1) • phosphate ions are used to make DNA and RNA • phosphate ions are used in the structure of the cell membr

  7. Q7(a)(ii)

    June 2022 · Paper 3

    2 marks1.6 Inorganic ions
    The whole paper ↗
    June 2022 Paper 3, question 7(a)(ii): Describe the function of a named mineral ion that is vital for the growth of plants. (2) Mineral ions Function

  8. Q4(a)

    November 2021 · Paper 1

    2 marks1.6 Inorganic ions
    The whole paper ↗
    November 2021 Paper 1, question 4(a): Which box in the table shows the mineral ions needed to make an amino acid and which box shows those needed to make DNA? (2) Mineral ions needed to make the mol

  9. Q11(b)(i)

    November 2021 · Paper 3

    1 mark1.6 Inorganic ions
    The whole paper ↗
    November 2021 Paper 3, question 11(b)(i): State one organic molecule containing nitrogen atoms which is found in plant cells. (1)

  10. Q2(a)

    November 2021 · AS Paper 1

    3 marks1.6 Inorganic ions
    The whole paper ↗
    November 2021 AS Paper 1, question 2(a): Explain why the student made these predictions. (3)

  11. Q2(b)

    November 2021 · AS Paper 1

    1 mark1.6 Inorganic ions
    The whole paper ↗
    November 2021 AS Paper 1, question 2(b): The student used a stock fertiliser solution at a concentration of 500 µg cm−3. Calculate the volumes of stock fertiliser solution and water that had to be mixe

  12. Q2(c)

    November 2021 · AS Paper 1

    1 mark1.6 Inorganic ions
    The whole paper ↗
    November 2021 AS Paper 1, question 2(c): When the fertiliser was added to the plant, the height of the plant was 130 cm. Six weeks after the fertiliser was added, the plant had grown to a height of 155

  13. Q9(b)(ii)

    June 2018 · Paper 1

    5 marks1.6 Inorganic ions5.7 Photosynthesis
    The whole paper ↗
    June 2018 Paper 1, question 9(b)(ii): The soil in Londrina is more fertile than the soil in Ponta Grossa. Londrina has higher temperatures and rainfall during the growing season. Explain the differe

  14. Q1(a)(ii)

    June 2017 · Paper 2

    1 mark1.6 Inorganic ions
    The whole paper ↗
    June 2017 Paper 2, question 1(a)(ii): The following statements relate to calcium pectate: 1. found in the middle lamella 2. holds cell walls together 3. prevents the movement of water Which of the f
All 14 questions on Inorganic ions, as a list
  1. June 2025, Paper 1, Q8(a) (1 mark): Which pair of molecules contains nitrogen atoms? (1) A carbohydrates and lipids B lipids and nucleic acids C nucleic acids and proteins D proteins and carbohydr
  2. June 2025, Paper 3, Q7(c) (2 marks): The phosphatase enzyme catalyses the removal of phosphate groups from organic phosphate molecules, releasing phosphate ions. Give two examples of biochemical pr
  3. June 2024, Paper 3, Q6(b) (3 marks): In another investigation, the student grew duckweed plants in water containing a fertiliser. The fertiliser contained nitrate, phosphate and magnesium ions. Thr
  4. June 2024, AS Paper 1, Q1(a)(i) (1 mark): Magnesium ions and nitrate ions are incorporated into molecules made by the plant. Which row in the table shows the molecules that incorporate these ions? (1) a
  5. June 2023, Paper 1, Q1(a)(i) (1 mark): Name the molecule that contains calcium ions in the cell walls of a plant. (1)
  6. June 2023, Paper 1, Q1(a)(ii) (1 mark): How many of the following statements are correct? (1) • phosphate ions are used to make DNA and RNA • phosphate ions are used in the structure of the cell membr
  7. June 2022, Paper 3, Q7(a)(ii) (2 marks): Describe the function of a named mineral ion that is vital for the growth of plants. (2) Mineral ions Function
  8. November 2021, Paper 1, Q4(a) (2 marks): Which box in the table shows the mineral ions needed to make an amino acid and which box shows those needed to make DNA? (2) Mineral ions needed to make the mol
  9. November 2021, Paper 3, Q11(b)(i) (1 mark): State one organic molecule containing nitrogen atoms which is found in plant cells. (1)
  10. November 2021, AS Paper 1, Q2(a) (3 marks): Explain why the student made these predictions. (3)
  11. November 2021, AS Paper 1, Q2(b) (1 mark): The student used a stock fertiliser solution at a concentration of 500 µg cm−3. Calculate the volumes of stock fertiliser solution and water that had to be mixe
  12. November 2021, AS Paper 1, Q2(c) (1 mark): When the fertiliser was added to the plant, the height of the plant was 130 cm. Six weeks after the fertiliser was added, the plant had grown to a height of 155
  13. June 2018, Paper 1, Q9(b)(ii) (5 marks): The soil in Londrina is more fertile than the soil in Ponta Grossa. Londrina has higher temperatures and rainfall during the growing season. Explain the differe
  14. June 2017, Paper 2, Q1(a)(ii) (1 mark): The following statements relate to calcium pectate: 1. found in the middle lamella 2. holds cell walls together 3. prevents the movement of water Which of the f

Questions, mark schemes and examiner’s reports are © Pearson Edexcel, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? Every Edexcel A-Level Biology B paper.

Rather write your answers by hand on iPad? Plumi marks them against the same mark schemes.