S3 · UCE Biology · Term 1

Gaseous Exchange

10 practice questions in the Elaarn app, marked line by line like the exam.

Installed it? Come back and tap Open in Elaarn.

What you practise

  • Features of respiratory surfaces
  • Breathing in humans (inspiration and expiration)
  • Gaseous exchange in the alveoli
  • Gaseous exchange in plants, insects and fish
  • Effects of smoking and pollution on the lungs

Lower secondary · S3 · Biology · Respiration in Plants and Animals. Elaarn covers every class from P1 to S6. About Elaarn