Gas Exchange AS Biology 3.5 / 5 based on 3 ratings ? BiologyBiological molecules, organic chemistry and biochemistryASOCR Created by: GracieCreated on: 23-12-12 14:18 What size surface area: volume ratio does Large organisms have? small 1 of 16 Small air sacs ? alveoli 2 of 16 alveoli are covered in a network of ? capillaries 3 of 16 The alveoli have elastic fibres, what feature does the fibres have the ability to do ? Recoil 4 of 16 Goblet cells secrete .. ? mucus 5 of 16 mucus traps dust and ? microorganisms 6 of 16 cartilage stops the airways from ? collapsing 7 of 16 The distribution of cartilage in the trachea ? C-shaped 8 of 16 When inspiring, intercostal muscles ? contract 9 of 16 Expiration does not need energy, therefore is a ? passive process 10 of 16 Inspiration is a active process, therefore requires ? energy 11 of 16 What can be used in a spirometer that absorbs CO2 ? soda lime 12 of 16 The alveoli constantly coil and re-col to re-fresh the air, this maintains a ? concentration gradient 13 of 16 Smooth muscle is smooth, therefore preventing ? resistance 14 of 16 What is it called when caculating air in each breath ? tidal volume 15 of 16 What is it called when caculating the maximum voulme of air that can be breathed in and out ? vital capacity 16 of 16
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