Which structure has both elastic fibres and squamous epithelium but no cartilage or cilia?

  1. Larynx
  2. Trachea
  3. Bronchus
  4. Alveolus
Answer

D) Alveolus

Alveoli are thin and elastic. AS & A Level Biology · Topic 9 Gas Exchange · 9.1 The gas exchange system

Biology MCQ · More A Level Biology: Gas exchange MCQs · Practise