ConceptConceptDocsDocuments

IB Biology HL 3.1.1 Gas Exchange and Asthma Question Bank

Practise IB Biology HL 3.1.1 through the exact HL evidence on airway inflammation, asthma symptoms, ventilation and reduced gas exchange.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Analyse how airway inflammation and narrowing reduce ventilation and gas exchange in asthma.
  • Use respiratory symptoms and study evidence to infer changes in gas-exchange efficiency.
  • Relate reduced oxygen uptake and carbon-dioxide removal to impaired aerobic respiration.

B3.1.1—Gas exchange as vital function question 1

[Maximum number: 3]

Outline the process of gas exchange necessary for aerobic respiration in a unicellular eukaryotic organism.

All question bank results loaded