A-LevelBiologyGas exchange9700/12 · Oct/Nov 2019 · 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
A: 1, 2 and 4
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