OCR Biology - Exchange Surfaces and Breathing Questions based on exchange surfaces and breathing OCR exam board 4.0 / 5 based on 2 ratings ? BiologyASAll boards Created by: StephanieCreated on: 09-01-12 19:18 What happens to the surface area:volume ratio when the size increases??? decrases 1 of 6 What is the function of the Eiplottis?? covers the trachea when swallowing to prevent entry of food to the lungs 2 of 6 What are the the features that enable the alveoli for gas exchange? one layer thick squamous epithelium, numerous number of alveoli, alveoli are surrounded by a network of capillaries, surfactant 3 of 6 What tissues/cells contain cartilage Trachea, Bronchus, Bronchioles 4 of 6 What tissue/cell contain smooth muscle trachea, bronchus 5 of 6 What is the chemical that can be uses in the spirometer to absorb carbon dioxide Soda lime 6 of 6
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