Skip to content
Try on iPad

Inorganic ions: AQA A‑Level Biology questions

Every AQA A-Level Biology exam question on 3.1.8 Inorganic ions, 2016–2025, with its mark scheme and examiner’s report.

Find questions1,383
Calculations

1,383 questions

  1. Q06.1

    June 2024 · AS Paper 1

    2 marks3.1.8 Inorganic ions
    The whole paper ↗
    June 2024 AS Paper 1, question 06.1: Give two roles of phosphate ions in cells. [2 marks] 1 2

  2. Q06.2

    June 2024 · AS Paper 1

    2 marks3.1.8 Inorganic ions
    The whole paper ↗
    June 2024 AS Paper 1, question 06.2: Diseased lungs can cause carbon dioxide to build up in the blood plasma. This leads to an increase in hydrogen ion concentration in the plasma. Describe the eff

  3. Q06.3

    June 2024 · AS Paper 1

    2 marks3.1.8 Inorganic ions
    The whole paper ↗
    June 2024 AS Paper 1, question 06.3: Use Figure 7 to describe two patterns shown in the total concentrations of positively and negatively charged ions in the cytoplasm and in tissue fluid. [2 marks

  4. Q06.1

    June 2022 · AS Paper 1

    2 marks3.1.8 Inorganic ions
    The whole paper ↗
    June 2022 AS Paper 1, question 06.1: Explain a property of iron ions that enables these ions to carry out their role in red blood cells. [2 marks]

  5. Q06.2

    June 2022 · AS Paper 1

    3 marks3.1.8 Inorganic ions
    The whole paper ↗
    June 2022 AS Paper 1, question 06.2: The hormone hepcidin controls the iron ion concentration in blood plasma. Hepcidin affects ferroportin, the iron ion channel protein in cell-surface membranes.

  6. Q06.3

    June 2022 · AS Paper 1

    2 marks3.1.8 Inorganic ions
    The whole paper ↗
    June 2022 AS Paper 1, question 06.3: The mass of iron ions in the plasma of a person with haemochromatosis is 6104 μg The iron ion concentration in the plasma of a healthy person is 50 μg dm–3 The

  7. Q05.3

    November 2021 · Paper 1

    1 mark3.1.8 Inorganic ions
    The whole paper ↗
    November 2021 Paper 1, question 05.3: The ratio of protein to chlorophyll in control plants is 9:1 Use the information in Table 4 to calculate the ratio of protein to chlorophyll in iron-deficient p

  8. Q07.2

    November 2021 · Paper 3

    25 marks3.1.8 Inorganic ions
    The whole paper ↗
    November 2021 Paper 3, question 07.2: The importance of ions in metabolic processes [25 marks]

  9. Q04.1

    November 2020 · Paper 3

    2 marks3.1.8 Inorganic ions
    The whole paper ↗
    November 2020 Paper 3, question 04.1: A journalist studied the data in Table 2. She made the following suggestion. ‘If an adult takes the maximum number of tablets allowed for either of the medicine

  10. Q04.2

    November 2020 · Paper 3

    2 marks3.1.8 Inorganic ions
    The whole paper ↗
    November 2020 Paper 3, question 04.2: Give two factors that should have been the same for each pair of patients and one factor that should have been different. [2 marks] Same factor 1 Same factor 2

  11. Q04.3

    November 2020 · Paper 3

    2 marks3.1.8 Inorganic ions
    The whole paper ↗
    November 2020 Paper 3, question 04.3: Doctors found: • 4.73% of the patients who had taken medicines containing high sodium concentrations suffered from hypertension • there were 7.18 times fewer co

  12. Q09.1

    June 2019 · AS Paper 2

    5 marks3.1.8 Inorganic ions
    The whole paper ↗
    June 2019 AS Paper 2, question 09.1: Describe the roles of iron ions, sodium ions, and phosphate ions in cells. [5 marks] [ ]

  13. Q05.1

    June 2017 · Paper 2

    1 mark3.1.8 Inorganic ions
    The whole paper ↗
    June 2017 Paper 2, question 05.1: Suggest one way in which an increase in the uptake of phosphate could increase plant growth. [1 mark]

  14. Q05.2

    June 2016 · AS Paper 2

    2 marks3.1.8 Inorganic ions
    The whole paper ↗
    June 2016 AS Paper 2, question 05.2: The scientists concluded that an increase in phosphate in the embryo was linke to growth of the embryo. Suggest two reasons why an increase in phosphate can be

  15. Q05.3

    June 2016 · AS Paper 2

    3.1.8 Inorganic ions
    The whole paper ↗
    June 2016 AS Paper 2, question 05.3: Calculate the ratio of the mean mass of phosphate found at 5 °C to the mean mass of phosphate found at 25 °C after 9 weeks of chilling. [1 mar Ratio =
All 15 questions on Inorganic ions, as a list
  1. June 2024, AS Paper 1, Q06.1 (2 marks): Give two roles of phosphate ions in cells. [2 marks] 1 2
  2. June 2024, AS Paper 1, Q06.2 (2 marks): Diseased lungs can cause carbon dioxide to build up in the blood plasma. This leads to an increase in hydrogen ion concentration in the plasma. Describe the eff
  3. June 2024, AS Paper 1, Q06.3 (2 marks): Use Figure 7 to describe two patterns shown in the total concentrations of positively and negatively charged ions in the cytoplasm and in tissue fluid. [2 marks
  4. June 2022, AS Paper 1, Q06.1 (2 marks): Explain a property of iron ions that enables these ions to carry out their role in red blood cells. [2 marks]
  5. June 2022, AS Paper 1, Q06.2 (3 marks): The hormone hepcidin controls the iron ion concentration in blood plasma. Hepcidin affects ferroportin, the iron ion channel protein in cell-surface membranes.
  6. June 2022, AS Paper 1, Q06.3 (2 marks): The mass of iron ions in the plasma of a person with haemochromatosis is 6104 μg The iron ion concentration in the plasma of a healthy person is 50 μg dm–3 The
  7. November 2021, Paper 1, Q05.3 (1 mark): The ratio of protein to chlorophyll in control plants is 9:1 Use the information in Table 4 to calculate the ratio of protein to chlorophyll in iron-deficient p
  8. November 2021, Paper 3, Q07.2 (25 marks): The importance of ions in metabolic processes [25 marks]
  9. November 2020, Paper 3, Q04.1 (2 marks): A journalist studied the data in Table 2. She made the following suggestion. ‘If an adult takes the maximum number of tablets allowed for either of the medicine
  10. November 2020, Paper 3, Q04.2 (2 marks): Give two factors that should have been the same for each pair of patients and one factor that should have been different. [2 marks] Same factor 1 Same factor 2
  11. November 2020, Paper 3, Q04.3 (2 marks): Doctors found: • 4.73% of the patients who had taken medicines containing high sodium concentrations suffered from hypertension • there were 7.18 times fewer co
  12. June 2019, AS Paper 2, Q09.1 (5 marks): Describe the roles of iron ions, sodium ions, and phosphate ions in cells. [5 marks] [ ]
  13. June 2017, Paper 2, Q05.1 (1 mark): Suggest one way in which an increase in the uptake of phosphate could increase plant growth. [1 mark]
  14. June 2016, AS Paper 2, Q05.2 (2 marks): The scientists concluded that an increase in phosphate in the embryo was linke to growth of the embryo. Suggest two reasons why an increase in phosphate can be
  15. June 2016, AS Paper 2, Q05.3: Calculate the ratio of the mean mass of phosphate found at 5 °C to the mean mass of phosphate found at 25 °C after 9 weeks of chilling. [1 mar Ratio =

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

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