Curriculum Portal

infoWhy this? We study gas exchange because organisms need to take in oxygen and remove carbon dioxide efficiently to support respiration, and understanding how different gas exchange systems are adapted for this is essential for explaining ventilation, circulation, surface area to volume ratios and the effects of disease and exercise on breathing.

scheduleWhy now? We study gas exchange now because, having learned about cell membranes, transport, enzymes and respiration, you are ready to scale these ideas up to whole organisms and see how specialised structures and systems supply cells with oxygen and remove carbon dioxide.