A-LevelBiologyPhotosynthesisMay/June 2018Paper 4 Q710 Marks
Fig. 7.1 is a transmission electron micrograph of part of a chloroplast of a leaf cell from maize. [Figure 7.1] Table 7.1 shows some substrates and products involved in photosynthesis. Use letter A or letter B from [Fig. 7.1] to complete [Table 7.1] to show the location where the substrates or products are used or produced. | substrate or product | location | |:---------------------|:---------| | oxygen produced | | | carbon dioxide used | | | reduced NADP used | | | ATP produced | | | hexose produced | |
📋 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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