0654.B6.1.01 — Describe photosynthesis as the process by which plants synthesise carbohydrates from raw materials using energy from light: past paper questions
Real questions on 0654.b6.1.01 — describe photosynthesis as the process by which plants synthesise carbohydrates from raw materials using energy from light
The newest 15 of 15 written questions. Open one to see it on the real paper.
- 0973/31 · May/June 2025 · Q1b[3]
Complete the sentences about carbohydrates in plants. Plants make carbohydrates using the process of . This process requires water and in the presence of (b) Sucrose is a type of carbohydrate.
See it on the paper → - 0973/41 · May/June 2025 · Q1b[4]
Fig. 1.1 shows the net uptake and the net release of carbon dioxide by a plant between midnight and midday. 40 30 release 20 10 net volume of carbon dioxide / arbitrary units 0 00:00 02:00 04:00 06:00 08:00 10:00 12:00 –10 –20 uptake –30 –40 –50 –60 time / hours Fig. 1.1 Complete the sentences to explain the shape of t...
See it on the paper → - 0973/41 · October/November 2024 · Q7b(iii)[2]
State two raw materials required for the growth of the potato plant.
See it on the paper → - 0973/41 · October/November 2024 · Q10b[2]
The number of underwater producers in the lake decreases during eutrophication. Explain why, using the information in Fig. 10.1.
See it on the paper → - 0973/32 · May/June 2024 · Q7a(i)[4]
Complete the sentences to explain the results shown in Table 7.1. The aquatic plant releases more bubbles of gas when kept in the light. This is because the process of requires energy from light. This energy is used to react the raw materials and . This process takes place in plant cell structures called .
See it on the paper → - 0973/31 · May/June 2023 · Q7c[3]
Describe the process of photosynthesis.
See it on the paper → - 0973/31 · October/November 2022 · Q7a(i)[2]
Use Table 7.1 to state the conditions needed for photosynthesis.
See it on the paper → - 0973/31 · October/November 2022 · Q7a(ii)[1]
Each plant is provided with an excess of carbon dioxide. Explain why.
See it on the paper → - 0973/31 · May/June 2022 · Q10e(ii)[2]
State two other requirements of photosynthesis.
See it on the paper → - 0973/32 · May/June 2022 · Q10b(i)[1]
Use the information in Table 10.1 to identify which substance is not required for photosynthesis.
See it on the paper → - 0973/32 · May/June 2022 · Q10b(ii)[2]
During the investigation, the student uses a lamp to provide a source of light. Predict the effect on photosynthesis if the investigation is repeated with no light. Give a reason for your answer. prediction reason
See it on the paper → - 0973/41 · May/June 2021 · Q10e[3]
List three substances plants need to make their own organic nutrients.
See it on the paper → - 0973/31 · October/November 2020 · Q7c(i)[2]
State two other requirements needed for photosynthesis.
See it on the paper → - 0973/32 · May/June 2020 · Q7b[3]
The Sun is the principal source of energy input to biological systems. Describe how energy from the Sun is used to make organic nutrients.
See it on the paper → - 0973/41 · May/June 2020 · Q1a(ii)[2]
Describe the results shown in Fig. 1.2. Include data from Fig. 1.2 in your answer.
See it on the paper →
What examiners said
Candidates could generally identify the process as photosynthesis and knew that light was required. They found identification of carbon dioxide as the other raw material more difficult with a lot of candidates writing oxygen or glucose. A small number of candidates thought the process was respiration which led them down the wrong route for the remainder of the question.
— Examiner report, May/June 2025, 0973/31 Q1(b) (Cambridge)
Most candidates correctly recognised process X as respiration. The most common incorrect responses were transpiration and diffusion. Most correctly stated sunlight, but some used insufficient terms such as sun and solar. Almost all stated that the rate increased. The majority identified the correct time from the graph.
— Examiner report, May/June 2025, 0973/41 Q1(b) (Cambridge)
Some candidates were able to identify the reactants and/or products, but few mentioned using light energy. Some candidates gave a description of respiration rather than photosynthesis.
— Examiner report, May/June 2023, 0973/31 Q7(c) (Cambridge)
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