0653.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 0653.b6.1.01 — describe photosynthesis as the process by which plants synthesise carbohydrates from raw materials using energy from light
The newest 20 of 43 written questions. Open one to see it on the real paper.
- 0653/06 · Specimen 2025 · Q1biv[1]
Suggest why the student repeats the experiment.
See it on the paper → - 0653/06 · Specimen 2025 · Q3ai[1]
Identify the gas produced.
See it on the paper → - 0653/06 · Specimen 2025 · Q3aii[1]
Suggest one observation the student makes which shows that this reaction is faster.
See it on the paper → - 0653/06 · Specimen 2025 · Q3bi[2]
Record in Table 3.1 the time taken to the nearest second to collect 5 cm³ and 25 cm³ of gas.
See it on the paper → - 0653/06 · Specimen 2025 · Q3bii[1]
State the independent variable and the dependent variable in this investigation.
See it on the paper → - 0653/06 · Specimen 2025 · Q3biii[3]
On the grid, plot a graph of volume of gas collected (vertical axis) against time taken.
See it on the paper → - 0653/31 · October/November 2025 · Q3b[3]
Duckweed uses energy from light for photosynthesis. Choose words from the list to complete the sentences. Each word may be used once, more than once or not at all. brown chloroplasts mitochondria nuclei purple digest green synthesise Photosynthesis is the process by which plants carbohydrates. Photosynthesis in plants...
See it on the paper → - 0653/32 · October/November 2025 · Q1b(i)[2]
Name the two raw materials used in photosynthesis. (i)
See it on the paper → - 0653/32 · October/November 2025 · Q1b(ii)[1]
Energy is needed for photosynthesis. State the source of this energy.
See it on the paper → - 0653/32 · October/November 2025 · Q1c(i)[2]
Calculate the difference in height between plant X and plant Y at 30 days. difference in height = cm
See it on the paper → - 0653/32 · October/November 2025 · Q1c(ii)[1]
Identify the days when the growth rate of plant X was the fastest. Place a tick (✓) in the correct box. 0 to 10 days 10 to 20 days 20 to 30 days
See it on the paper → - 0653/33 · October/November 2025 · Q1b(i)[2]
Name the two raw materials used in photosynthesis. (i)
See it on the paper → - 0653/33 · October/November 2025 · Q1b(ii)[1]
Energy is needed for photosynthesis. State the source of this energy.
See it on the paper → - 0653/33 · October/November 2025 · Q1c(i)[2]
Calculate the difference in height between plant X and plant Y at 30 days. difference in height = cm
See it on the paper → - 0653/33 · October/November 2025 · Q1c(ii)[1]
Identify the days when the growth rate of plant X was the fastest. Place a tick (✓) in the correct box. 0 to 10 days 10 to 20 days 20 to 30 days
See it on the paper → - 0653/42 · October/November 2025 · Q1c(i)[2]
Calculate the difference in the maximum and minimum rates of photosynthesis shown in Fig. 1.2. difference in rates of photosynthesis = arbitrary units
See it on the paper → - 0653/42 · October/November 2025 · Q1c(ii)[3]
Enzymes are involved in photosynthesis. Explain the shape of the graph between 10 °C and 15 °C shown in Fig. 1.2.
See it on the paper → - 0653/33 · May/June 2025 · Q3c[1]
Coral reef habitats release carbon dioxide into the atmosphere. State a process in the carbon cycle that removes carbon dioxide from the atmosphere.
See it on the paper → - 0653/42 · May/June 2025 · Q2c[3]
Plants use water in the process of photosynthesis. Describe the process of photosynthesis.
See it on the paper → - 0653/42 · February/March 2025 · Q3a(ii)[1]
The cell labelled Q is specialised for a specific function. State the function of the cell labelled Q.
See it on the paper →
What examiners said
Some candidates answered photosynthesis correctly. Others gave raining or respiration.
— Examiner report, May/June 2025, 0653/33 Q3(c) (Cambridge)
Some candidates recalled the reactants and/or the products but they were less likely to recall the role of chlorophyll or describe the transfer of light energy to chemical energy.
— Examiner report, May/June 2025, 0653/42 Q2(c) (Cambridge)
Candidates of all abilities knew that the function of the labelled cell was photosynthesis. A common mistake was to suggest a structural feature of the cell such as cytoplasm, cell membrane or chloroplast.
— Examiner report, February/March 2025, 0653/42 Q3(a)(ii) (Cambridge)
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