0653.B8.3.01 — Describe transpiration as the loss of water vapour from leaves: past paper questions
Real questions on 0653.b8.3.01 — describe transpiration as the loss of water vapour from leaves
The newest 17 of 17 written questions. Open one to see it on the real paper.
- 0653/43 · October/November 2025 · Q2b(i)[1]
Describe transpiration in plants.
See it on the paper → - 0653/42 · May/June 2025 · Q2b[2]
Water is lost from the leaves of a plant by the process of transpiration. A student investigates the effect of wind speed on the rate of transpiration. Complete Fig. 2.2 by: • • labelling the y-axis drawing a line to predict the expected results of this investigation. wind speed
See it on the paper → - 0653/21 · October/November 2024 · Q7[1]
Which row is correct for the transport of water during transpiration in plants?
See it on the paper → - 0653/32 · October/November 2024 · Q7a(iii)[3]
Water is a raw material for photosynthesis. Complete these sentences about the movement of water in a plant. • Water enters the roots through root cells. • Water is transported from the roots to the leaves in vessels.
See it on the paper → - 0653/33 · October/November 2024 · Q7a(iii)[3]
Water is a raw material for photosynthesis. Complete these sentences about the movement of water in a plant. • Water enters the roots through root cells. • Water is transported from the roots to the leaves in vessels.
See it on the paper → - 0653/42 · May/June 2024 · Q7b(i)[2]
List two features of gas exchange surfaces.
See it on the paper → - 0653/42 · May/June 2024 · Q7b(ii)[2]
The composition of inspired air is different to expired air. Tick () all the boxes that explain this statement. Carbon dioxide is a product of respiration. Nitrogen is taken into the blood and used in respiration. Oxygen is a product of respiration. Water is a reactant of respiration. Water evaporates from the lining...
See it on the paper → - 0653/43 · May/June 2024 · Q7a(ii)[3]
Describe how water moves from the surface of the spongy mesophyll cells to outside the stomata.
See it on the paper → - 0653/32 · February/March 2024 · Q4c(i)[2]
Describe how the water vapour is lost from the leaves of plants.
See it on the paper → - 0653/32 · February/March 2024 · Q4c(ii)[1]
State the effect of an increase in humidity on the rate of water loss from leaves.
See it on the paper → - 0653/42 · February/March 2024 · Q4b[3]
Fig. 4.2 shows the effect of humidity on transpiration in plants. P rate of transpiration Q humidity Fig. 4.2 Explain the pattern shown in Fig. 4.2 between P and Q.
See it on the paper → - 0653/31 · October/November 2023 · Q4a(i)[1]
Describe the effect of temperature on transpiration.
See it on the paper → - 0653/33 · October/November 2023 · Q1c(i)[3]
Complete the sentences to describe how water is lost from the leaves. The water evaporates from the surfaces of the cells. The water vapour then exits the leaf by through the stomata.
See it on the paper → - 0653/33 · October/November 2023 · Q1c(ii)[1]
Suggest why stomata may close on very hot dry days.
See it on the paper → - 0653/22 · May/June 2023 · Q13[1]
Which order of these events results in the death of fish and other aquatic organisms?
See it on the paper → - 0653/43 · May/June 2023 · Q4b(i)[3]
Calculate the percentage increase in the rate of transpiration between 08:00 and 12:00 hours. Give your answer to the nearest whole number. percentage increase = %
See it on the paper → - 0653/11 · October/November 2022 · Q9[1]
Which combination of effects does adrenaline cause?
See it on the paper →
What examiners said
Candidates were required to sketch a graph to show the effect of wind speed on the rate of transpiration. Most candidates labelled the y-axis correctly and indicated a positive trend. Some candidates showed the positive trend reaching a maximum.
— Examiner report, May/June 2025, 0653/42 Q2(b) (Cambridge)
Candidates found this question challenging. Many candidates stated that the water vapour is lost from the leaves by transpiration without demonstrating any knowledge of the process of transpiration, the diffusion of water vapour through stomata in the leaf. A common error was stating osmosis instead of diffusion. Osmosis occurs in a liquid medium and during transpiration the diffusion of water vap...
— Examiner report, February/March 2024, 0653/32 Q4(c)(i) (Cambridge)
The inverse relationship between transpiration rate and humidity was stated correctly by most candidates.
— Examiner report, February/March 2024, 0653/32 Q4(c)(ii) (Cambridge)
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