A-LevelBiologyGas exchangeMay/June 2017Paper 1 Q311 Mark
The photomicrograph shows a section through lung tissue. [Photomicrograph of lung tissue] Which structures are present in this photomicrograph? [Table with columns 'artery', 'vein', 'bronchioles', 'bronchus', 'trachea' and rows A, B, C, D]
Aartery ✓, vein ✓, bronchioles X, bronchus X, trachea X
Bartery ✓, vein X, bronchioles ✓, bronchus X, trachea X
Cartery X, vein ✓, bronchioles ✓, bronchus ✓, trachea X
Dartery X, vein X, bronchioles X, bronchus ✓, trachea ✓
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of gas exchange within the Biologysyllabus. The examiner's mark scheme requires...
📋 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...
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