The cell is the basic unit of life. Every living thing is composed of cells. Cells are miniscule and composed of many different parts. These parts are labeled for you on the left. The cell with the purple on the outside is an animal cell and the cell with the green on the outside is a plant cell. Notice how to animal cell is more round is shape than the plant cell. This is because the plant cell has a rigid cell wall while the animal cell has a more flexible cell membrane.
