A-LevelBiologyGas exchangeOct/Nov 2019Paper 1 Q341 Mark
Some symptoms of chronic obstructive pulmonary disease (COPD) are listed. 1 bursting of alveoli 2 loss of elastic fibres 3 increase in secretion of mucus 4 reduction in surface area for gaseous exchange 5 narrowing of airways Which of these are also the symptoms of emphysema?
A1, 2 and 4
B1, 3 and 5
C2, 3 and 5
D3, 4 and 5
✓ 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...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep