B3 quiz! Quick B3 quiz to test your knowledge! 4.5 / 5 based on 4 ratings ? BiologyGCSEAll boards Created by: ebbb:)Created on: 03-05-12 18:55 What feature do plant leaves have to make them waterproof? waxy cuticle 1 of 10 What is mean't by Active Transport? substances that are absorbed against a concentration gradient 2 of 10 Do cells absorb ions from very dilute solutions using active transport? True 3 of 10 What features do Villi have which makes them more effective? large surface area, moist surface area with a rich blood supply and thin walls 4 of 10 What is mean't by Transpiration? the loss of water vapour from the surface of plant leaves 5 of 10 Is it true or false, that an Artery has a small lumen? True 6 of 10 Is it true or false, that a Vein has thick walls? False 7 of 10 Is it true or false, that a Capillary has walls a single cell thick with a narrow lumen? True 8 of 10 What is oxygen debt? the amount of oxygen needed to break down lactic acid which has built up after exercise 9 of 10 Finally, what causes milk to solidify to create yoghurt? lactic acid 10 of 10
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