The word Photosynthesis is made up of two part: “Photo” means light. “Synthesis” means Putting together. Plants need food but they don’t have to wait for people or animals to provide it to them. Most plants can make their own food. They do it by using light and the process is called photosynthesis.
To make food (in other words, for photosynthesis), plants needs the following: Carbon dioxide – it comes from the air, passing through pores in the leaves. These pores are called stomata. Water – absorbed by the roots and passes through vessels of the stem on its way to the leaves Sunlight – absorbed by a greed chemical in the leaves
The Photosynthesis takes places in the leaves of plants. The leaves are made up of cells. Cells are made up of tiny structures called chloroplasts. Each chloroplast contains a chemical called chrolophyll which gives the plant its green color.
Chlorophyll absorbs the sun’s energy. The absorbed energy splits water molecules into hydrogen and oxygen. Oxygen is released from the leaves into the atmosphere. Hydrogen and carbon dioxide are used to form glucose or food for plants.