Biology - Exchange in plants - B3.2.3 0.0 / 5 ? BiologyExchange of materialsGCSEAQA Created by: shcooolCreated on: 16-05-15 18:59 Name three things that are taken in by a plant and how? carbon dioxide enters leaves by diffusion, water and mineral ions are absorbed by roots 1 of 8 How is surface area of roots increased? root hairs 2 of 8 How is the surface area of leaves increased? flattened shape and internal air spaces 3 of 8 What does a plant have to allow gases in and out? Stomata (holes) to obtain carbon dioxide form air, to remove oxygen produced in photosynthesis and water vapour in transpiration 4 of 8 Where do plants mainly lose their water? From the stomata in the leaves 5 of 8 In which conditions does evaporation happen the fastest? hot, dry and windy conditions 6 of 8 What happens if plants lose water faster than replaced by roots? The stomata can close to prevent wilting 7 of 8 How is the size of stomata controlled? by guard cells 8 of 8
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