Green plants make their own sugarA simple carbohydrate that is sweet to the taste. by the process of photosynthesis.
Figure caption,
Microscope view of plant cells
Photosynthesis takes place inside the chloroplasts of plant cells. chlorophyllThe green chemical inside the chloroplasts of plant cells. It enables photosynthesis to take place., the green pigment found in chloroplasts, traps light energy, usually from the sun.
Plants also take in raw materials from the environment, water through their roots and carbon dioxide through the stomata of their leaves by diffusion.
sugarA simple carbohydrate that is sweet to the taste. is made for plants to use and oxygen is released into the atmosphere which is very useful for humans and other organisms that carry out aerobic respiration.
Overall energy conversion during photosynthesis
Energy cannot be produced or used up, it can only be converted from one form to another.
In photosynthesis, light energy is converted into chemical energy which is stored in the sugar molecules produced. This stored energy is then available to the plant cells to use.