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A-LevelBiologyGas exchangeMay/June 2022Paper 2 Q19 Marks

Fig. 1.1 and Fig. 1.2 are photomicrographs showing the distribution of tissues in the lungs. Fig. 1.1 is a photomicrograph of a section through part of the lungs. Fig. 1.2 is a high-power view of the area indicated on Fig. 1.1.

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The correct answer is . This question tests the candidate's understanding of gas exchange within the Biologysyllabus. The examiner's mark scheme requires...

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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...

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About This A-Level Biology Question

This structured question appeared in the Cambridge A-Level Biology (9700) May/June 2022 examination, Paper 2 Variant 1. It tests the topic of Gas exchange and is worth 9 marks.

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