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A-LevelBiologyPhotosynthesisFeb/Mar 2019Paper 4 Q113 Marks

The effect of light intensity on the rate of photosynthesis can be investigated using a cut shoot of a pond plant. The apparatus used in the investigation is shown in [Figure 1.1]. The light intensity can be changed by placing the lamp at different distances from the pond plant.

Q: What topic does this question test?

This question tests Photosynthesis in A-Level Biology (syllabus code 9700). It is worth 13 marks.

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Biology Question

Topic

This structured question tests Photosynthesis in A-Level Biology (syllabus code 9700). It is worth 13 marks.

Source

This question appeared in the Cambridge A-Level Biology Feb/Mar 2019 examination, Paper 4 Variant 2.

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