plumiLeaves and transpiration: Edexcel GCSE Combined Science questions
Every Edexcel GCSE Combined Science exam question on Leaves and transpiration (specification points 6.12–6.13), 2018–2025, with its mark scheme and examiner’s report.
Paper
All papers
Exam
All years
Calculations
Q4(a)(i)
The whole paper ↗Q4(a)(ii)
The whole paper ↗Q4(a)(iii)
The whole paper ↗Q6(c)
The whole paper ↗Q1(b)(i)
The whole paper ↗Q1(b)(ii)
The whole paper ↗Q1(b)(iii)
The whole paper ↗Q5(c)(i)
The whole paper ↗Q5(c)(ii)
The whole paper ↗Q5(c)(iii)
The whole paper ↗Q1(a)
The whole paper ↗Q5(a)
The whole paper ↗Q3(c)(i)
The whole paper ↗Q3(c)(ii)
The whole paper ↗Q3(c)(iii)
The whole paper ↗Q2(a)(i)
The whole paper ↗Q2(a)(ii)
The whole paper ↗Q2(b)(i)
The whole paper ↗Q2(b)(ii)
The whole paper ↗Q2(b)(iii)
The whole paper ↗
All 25 questions on Leaves and transpiration, as a list
- June 2025, Biology Paper 2 Higher, Q4(a)(i) (1 mark): State the number of guard cells shown in Figure 8. (1)
- June 2025, Biology Paper 2 Higher, Q4(a)(ii) (2 marks): State one gas that leaves the stomata and one gas that enters the stomata during daylight. (2) gas leaving stomata gas entering stomata
- June 2025, Biology Paper 2 Higher, Q4(a)(iii) (1 mark): State why the stomata close. (1)
- June 2024, Biology Paper 2 Foundation, Q6(c) (6 marks): The arrows in Figure 11 show the direction of water movement through a tree. Figure 11 Explain how water is moved from the soil, through the plant and into the
- June 2022, Biology Paper 2 Higher, Q1(b)(i) (3 marks): Explain why switching on the fan caused a change in the volume of water taken up by the plant. (3)
- June 2022, Biology Paper 2 Higher, Q1(b)(ii) (1 mark): Give one reason why the volume of water taken up by the plant was also measured when the fan was not switched on. (1)
- June 2022, Biology Paper 2 Higher, Q1(b)(iii) (2 marks): Calculate the rate of water uptake from 8 minutes to 10 minutes when the fan was switched on. Use the equation rate of water uptake = volume of water taken up t
- June 2022, Biology Paper 2 Foundation, Q5(c)(i) (3 marks): Explain why switching on the fan caused a change in the volume of water taken up by the plant. (3)
- June 2022, Biology Paper 2 Foundation, Q5(c)(ii) (1 mark): Give one reason why the volume of water taken up by the plant was also measured when the fan was not switched on. (1)
- June 2022, Biology Paper 2 Foundation, Q5(c)(iii) (2 marks): Calculate the rate of water uptake from 8 minutes to 10 minutes when the fan was switched on. Use the equation rate of water uptake = volume of water taken up t
- November 2020, Biology Paper 2 Higher, Q1(a) (2 marks): Water lilies have stomata on the upper surface of the leaves. Explain why water lilies have no stomata on the lower surface of the leaves. (2)
- November 2020, Biology Paper 2 Foundation, Q5(a) (2 marks): Water lilies have stomata on the upper surface of the leaves. Explain why water lilies have no stomata on the lower surface of the leaves. (2)
- June 2019, Biology Paper 2 Higher, Q3(c)(i) (1 mark): Name the cells that change the size of stomata. (1)
- June 2019, Biology Paper 2 Higher, Q3(c)(ii) (2 marks): Describe the trend shown in Figure 4. (2)
- June 2019, Biology Paper 2 Higher, Q3(c)(iii) (2 marks): The temperature increased from 8 am to 1 pm. Explain why this affected the size of the stomata. (2)
- June 2018, Biology Paper 2 Higher, Q2(a)(i) (1 mark): State why a coverslip is placed on top of the leaf peel. (1)
- June 2018, Biology Paper 2 Higher, Q2(a)(ii) (2 marks): Explain why the leaf peel rather than the whole leaf was viewed with a microscope. (2)
- June 2018, Biology Paper 2 Higher, Q2(b)(i) (1 mark): State the number of stomata visible on Figure 4. (1)
- June 2018, Biology Paper 2 Higher, Q2(b)(ii) (3 marks): The student observed that the stomata were open. Describe how stomata open. (3)
- June 2018, Biology Paper 2 Higher, Q2(b)(iii) (2 marks): The leaf peel from the upper surface of this leaf showed no stomata. Explain why it is an advantage to the plant to have this distribution of stomata in the upp
- June 2018, Biology Paper 2 Higher, Q5(c) (6 marks): Explain how substances are moved through a plant by transpiration and translocation. (6)
- June 2018, Biology Paper 2 Foundation, Q6(a)(i) (1 mark): State why a coverslip is placed on top of the leaf peel. (1)
- June 2018, Biology Paper 2 Foundation, Q6(a)(ii) (2 marks): Explain why the leaf peel rather than the whole leaf was viewed with a microscope. (2)
- June 2018, Biology Paper 2 Foundation, Q6(b)(i) (1 mark): State the number of stomata visible on Figure 13. (1)
- June 2018, Biology Paper 2 Foundation, Q6(b)(ii) (3 marks): The student observed that the stomata were open. Describe how stomata open. (3)
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