A-LevelBiologyGas exchangeOct/Nov 2025Paper 1 Q361 Mark
The diagram shows parts of the gas exchange system in humans and the associated cells or structures. [Boxes with labels: alveolus, bronchiole, bronchus, trachea and ciliated cells, squamous epithelial cells, C-shaped rings of cartilage, ciliated cells and goblet cells] Which diagram shows the lines that correctly match the parts to their cells or structures?
A[Diagram A showing connections]
B[Diagram B showing connections]
C[Diagram C showing connections]
D[Diagram D showing connections]
✓ Correct Answer
The correct answer is A: [Diagram A showing connections]
📋 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.
🔒
Unlock the Examiner's Analysis
Sign up for free to reveal the full examiner report, trap analysis, and mark scheme breakdown for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep