Gas Exchange
Biology: AQA GCSE Higher, topic 2.3.9
Test yourself on Gas Exchange
Gas Exchange in the Lungs
Why does deoxygenated blood pass through the lungs before returning to the heart?
What happens to oxygen and carbon dioxide in the capillaries that surround the alveoli?
Why are the alveoli surrounded by a network of capillaries?
What would happen to gas exchange in the alveoli if a person's bronchioles became completely blocked?