Plants take in water and mineral salts from the soil through their root hairs. The mixture of water and mineral salts is called xylem sap., Xylem sap travels up the stem to the leaves and other green parts of the plant (where chloroplasts are found)., The leaves absorb carbon dioxide from the air through the stomata and trap sunlight using the chlorophyll inside the chloroplasts., Plants use sunlight to transform carbon dioxide and xylem sap into glucose (which is mixed with water to form phloem sap) in a process called photosynthesis., Phloem sap (food of the plant=water + glucose) travels from the leaves to all the cells of the plant..

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