Site: http://www.youtube.com/watch?v=v590JJV96lc&feature=related

Photosynthesis matters to me because it is how plants create energy. We are all alive because of these plants and this process. Without this process, we wouldn't have oxygen and glucose from plants which, when consumed, our body breaks down to make ATP. Plants are really this huge basis of life. Without plants, we would have no oxygen AND we wouldn't have any food. All of the food we eat comes from plants. Without the plant's ability to take energy from the sun and convert it into ATP for the plant and helps them make glucose, who knows what would happen to us. We depend on plants. I think this is the big general reason for why photosynthesis is important.