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The impact of population increase: OCR A‑Level Biology B questions

Every OCR A-Level Biology B exam question on 4.3.2 The impact of population increase, 2016–2025, with its mark scheme and examiner’s report.

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1,889 questions

  1. Q22

    June 2025 · Paper 1

    1 mark4.3.2 The impact of population increase
    The whole paper ↗
    June 2025 Paper 1, question 22: Which of the following factors will not directly affect the size of the human global population? A Advances in medical technology B Control of communicable dise

  2. Q5(a)(i)

    June 2024 · Paper 3

    2 marks4.3.2 The impact of population increase
    The whole paper ↗
    June 2024 Paper 3, question 5(a)(i): Describe the results shown in the graph. [2]

  3. Q31(b)

    June 2023 · Paper 1

    3 marks4.3.2 The impact of population increase
    The whole paper ↗
    June 2023 Paper 1, question 31(b): In recent years, other breeds of domestic goat from Europe have been introduced to North African herds for breeding programmes due to their higher milk yields.

  4. Q31(a)(i)

    June 2022 · Paper 1

    2 marks4.3.2 The impact of population increase
    The whole paper ↗
    June 2022 Paper 1, question 31(a)(i): On Fig. 31.1, draw a curve to show estimated changes in the size of this population. Write your answer on Fig. 31.1. [2]

  5. Q31(a)(ii)

    June 2022 · Paper 1

    3 marks4.3.2 The impact of population increase
    The whole paper ↗
    June 2022 Paper 1, question 31(a)(ii): Suggest why there are differences in the birth rates for stages 2 and 3. [3]

  6. Q31(a)(iii)

    June 2022 · Paper 1

    1 mark4.3.2 The impact of population increase
    The whole paper ↗
    June 2022 Paper 1, question 31(a)(iii): Suggest one reason why birth rate has dropped below death rate in stage 5. [1]

  7. Q31(b)

    June 2022 · Paper 1

    6 marks4.3.2 The impact of population increase
    The whole paper ↗
    June 2022 Paper 1, question 31(b): The size of a human population is determined by the relationship between birth and death rates. (b)* In 2019 it was estimated that 19.3% of people living in low

  8. Q34(a)

    November 2021 · Paper 1

    6 marks4.3.2 The impact of population increase
    The whole paper ↗
    November 2021 Paper 1, question 34(a): Tonle Sap Lake in Cambodia is one of the world’s most productive and biodiverse freshwater ecosystems. The human population of the Tonle Sap Lake live on floati

  9. Q34(b)(i)

    November 2021 · Paper 1

    2 marks4.3.2 The impact of population increase
    The whole paper ↗
    November 2021 Paper 1, question 34(b)(i): Suggest reasons for differences in the number of animal species in these habitats. [2]

  10. Q5(a)(i)

    June 2018 · Paper 2

    1 mark4.3.2 The impact of population increase
    The whole paper ↗
    June 2018 Paper 2, question 5(a)(i): Explain why birth rates and death rates are shown in Fig. 5.1 as ‘number per thousand per year’. [1]

  11. Q5(a)(ii)

    June 2018 · Paper 2

    3 marks4.3.2 The impact of population increase
    The whole paper ↗
    June 2018 Paper 2, question 5(a)(ii): Use the data in Fig. 5.1 to calculate the projected rate of increase in the population of Africa between 2028 and 2080. Show your working. Give your answer in s

  12. Q5(a)(iii)

    June 2018 · Paper 2

    3 marks4.3.2 The impact of population increase
    The whole paper ↗
    June 2018 Paper 2, question 5(a)(iii): Use the birth rate and death rate data in Fig. 5.1 to explain the different trends in population for Africa and Europe. [3]

  13. Q5(b)(ii)

    June 2018 · Paper 2

    2 marks4.3.2 The impact of population increase
    The whole paper ↗
    June 2018 Paper 2, question 5(b)(ii): Discuss to what extent the data in Fig. 5.2 explain the changes in death rates in Africa shown in Fig. 5.1. [2]

  14. Q5(c)

    June 2018 · Paper 2

    5 marks4.3.2 The impact of population increase
    The whole paper ↗
    June 2018 Paper 2, question 5(c): Using Fig. 5.1 and Fig. 5.2, as well as your own knowledge, what can you conclude about the potential risks to food security and sustainability in Africa? [5]

  15. Q1(c)

    June 2017 · Paper 2

    6 marks5.1.3 Gene technologies4.3.2 The impact of population increase
    The whole paper ↗
    June 2017 Paper 2, question 1(c): This question is based on the Advance Notice article TURBOCHARGED PHOTOSYNTHESIS?, which is an insert. (c)* Evaluate the risks and benefits of growing supercrop
All 15 questions on The impact of population increase, as a list
  1. June 2025, Paper 1, Q22 (1 mark): Which of the following factors will not directly affect the size of the human global population? A Advances in medical technology B Control of communicable dise
  2. June 2024, Paper 3, Q5(a)(i) (2 marks): Describe the results shown in the graph. [2]
  3. June 2023, Paper 1, Q31(b) (3 marks): In recent years, other breeds of domestic goat from Europe have been introduced to North African herds for breeding programmes due to their higher milk yields.
  4. June 2022, Paper 1, Q31(a)(i) (2 marks): On Fig. 31.1, draw a curve to show estimated changes in the size of this population. Write your answer on Fig. 31.1. [2]
  5. June 2022, Paper 1, Q31(a)(ii) (3 marks): Suggest why there are differences in the birth rates for stages 2 and 3. [3]
  6. June 2022, Paper 1, Q31(a)(iii) (1 mark): Suggest one reason why birth rate has dropped below death rate in stage 5. [1]
  7. June 2022, Paper 1, Q31(b) (6 marks): The size of a human population is determined by the relationship between birth and death rates. (b)* In 2019 it was estimated that 19.3% of people living in low
  8. November 2021, Paper 1, Q34(a) (6 marks): Tonle Sap Lake in Cambodia is one of the world’s most productive and biodiverse freshwater ecosystems. The human population of the Tonle Sap Lake live on floati
  9. November 2021, Paper 1, Q34(b)(i) (2 marks): Suggest reasons for differences in the number of animal species in these habitats. [2]
  10. June 2018, Paper 2, Q5(a)(i) (1 mark): Explain why birth rates and death rates are shown in Fig. 5.1 as ‘number per thousand per year’. [1]
  11. June 2018, Paper 2, Q5(a)(ii) (3 marks): Use the data in Fig. 5.1 to calculate the projected rate of increase in the population of Africa between 2028 and 2080. Show your working. Give your answer in s
  12. June 2018, Paper 2, Q5(a)(iii) (3 marks): Use the birth rate and death rate data in Fig. 5.1 to explain the different trends in population for Africa and Europe. [3]
  13. June 2018, Paper 2, Q5(b)(ii) (2 marks): Discuss to what extent the data in Fig. 5.2 explain the changes in death rates in Africa shown in Fig. 5.1. [2]
  14. June 2018, Paper 2, Q5(c) (5 marks): Using Fig. 5.1 and Fig. 5.2, as well as your own knowledge, what can you conclude about the potential risks to food security and sustainability in Africa? [5]
  15. June 2017, Paper 2, Q1(c) (6 marks): This question is based on the Advance Notice article TURBOCHARGED PHOTOSYNTHESIS?, which is an insert. (c)* Evaluate the risks and benefits of growing supercrop

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