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Photosynthesis as an energy transfer process

Biology10 questions

10 past-paper questions on Photosynthesis as an energy transfer process

9700/42 · October/November 20247 marks
The light-dependent stage of photosynthesis produces ATP and reduced NADP, which are used in the light-independent stage.…
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9700/41 · October/November 20246 marks
Plants can carry out cyclic photophosphorylation and non-cyclic photophosphorylation during the light-dependent stage of…
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9700/41 · May/June 20254 marks
Some of the protein components of the thylakoid membrane have a role in the light-dependent stage of photosynthesis. Explain the…
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9700/41 · May/June 20253 marks
Scientists claim that the artificial photosynthesis process shown in Fig. 4.1 is more efficient at converting light energy into…
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9700/42 · October/November 20243 marks
Paper chromatography is a technique that can be used to separate and identify different chloroplast pigments. Describe how the…
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9700/42 · October/November 20243 marks
Describe the results shown in Fig. 9.2.
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9700/41 · May/June 20253 marks
Identify three similarities between the artificial photosynthesis process shown in Fig. 4.1 and the normal process of…
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9700/42 · October/November 20243 marks
Carotene and xanthophyll are chloroplast pigments. Describe the role played by these pigments in photosynthesis.
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9700/41 · May/June 20252 marks
Structures A and B in Fig. 4.2 are found within the chloroplast. Name structures A and B.
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9700/41 · October/November 20242 marks
The rate of photosynthesis decreases by 40% when the leaves of M. pudica close. Explain why the rate of photosynthesis decreases…
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Worked example

What a lost mark actually looks like

This answer reaches the right coordinates and still drops a mark — the conclusion is stated, but never justified. Examiners pay for the reasoning, not the answer.

MARKED

80%

Strong

M1dy/dx = 3x^2 - 12x + 9M1 earned
M1(x - 1) $(x - 3) = 0$ M1 earned
A1 $x = 1$ or $x = 3$ A1 earned
B1(1, 5) is a maximum and (3, 1) is a minimumB1 not earned

B1 — withheld
You stated the nature of each point correctly, but stated it without justification. This mark needs the reasoning shown — either evaluate the second derivative (d²y/dx² = 6x − 12, giving −6 at $x = 1$ and +6 at $x = 3$ ) or show a sign change of dy/dx either side of each point. An unsupported assertion earns nothing here even when the conclusion is right.

Photosynthesis as an energy transfer process (9700) past-paper questions — marked instantly

These are real Cambridge Biology past-paper questions on Photosynthesis as an energy transfer process. Open one, attempt it, then upload your working — MarkScheme grades it against the official 9700 mark scheme so you see exactly where the marks are won and lost on this topic.

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Frequently asked questions

How many Photosynthesis as an energy transfer process questions are there for 9700?: This page collects 10 recent Cambridge Biology (9700) past-paper questions tagged to Photosynthesis as an energy transfer process. Each links straight to instant marking against the official 9700 scheme.
How are Photosynthesis as an energy transfer process answers marked?: Type or photograph your working and MarkScheme scores it against the real 9700 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.
Where can I learn Photosynthesis as an energy transfer process first?: Start with the free Biology lesson on Photosynthesis as an energy transfer process, then come back and drill past-paper questions under timed conditions.