Soil particles have pore space in between them for water., Water is at a high potential in the soil surrounding the root., Water moves by osmosis into the root., Root hair cells have a large surface area to increase the rate of osmosis., Water moves through root towards the xylem., The xylem contains a continuous column of water linked together through hydrogen bonding., Water is drawn out of the xylem and through the veins into the leaves., Some of this water is used by the palisade cells for photosynthesis., The surface of the leaf has a waxy cuticle to prevent water loss., Water on the surface of the spongy cells evaporates., The water vapour diffuses through the stomata and out of the underside of the leaf..

AS KS4 to KS5 content Biology AQA Transpiration

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