Describe the process which is used by plants to make food?

All living things need food to survive. However, plants cannot nip down to tesco to buy themselves a pizza, instead they make their own food. This process is called photosynthesis. Plants take in carbon dioxide and water to turn these into their food - which is glucose. This process also produces oxygen. For photosynthesis to occur, the plants need energy in the form of light. Plants have a green pigment called chlorophyll in their cells which absorbs the light so the plant can use it for photosynthesis. So this gives us the equation CO2 + H20 ---light----> glucose + O2. The Co2 comes from the air through tiny holes in the plants' leaves called stomata. The water is taken in from the ground through the roots and travels up the xylem to the leaves. The plants do not need oxygen and so they release this back into the air, again through stomata. This is why plants are so good for the environment. The product plants need from this process is glucose. They can use this for things like growth and can store it as a product called starch.