Every living thing is made up of cells. Some things are made of animal cells. Others are made up of plant cells. Inside all cells are organelles. Organelle means "little organ." Each of these little organs has a different function. One organelle is called a chloroplast. Chloroplasts are found only in plant cells. Inside each chloroplast is a chemical called chlorophyll. It is a green pigment that makes chloroplasts, and as a result, the leaves of a plant appear green. Together, chloroplasts and chlorophyll have a very important job. They make it possible for plants to absorb the energy .....