Diffusion through cell membranes 0.0 / 5 ? BiologyCells, tissues and organsGCSEAQA Created by: EmmaCreated on: 07-05-13 17:52 Does gas exchange happen in the lungs? Yes 1 of 5 What is the purpose of the lungs? To transfer oxygen to the blood and remove waste carbon dioxide from it 2 of 5 What do lungs contain? Millions of air sacs called alveoli where gas exchange takes place 3 of 5 How are aveoli specialised to maximise diffusion of oxygen and carbon dioxide? Large surface area, moist lining for dissolving gases, thin walls and good blood supply 4 of 5 Why are alveoli specialised? To maximise the diffusion of oxygen and carbon dioxide 5 of 5
Comments
No comments have yet been made