All living things are made of one or more cells. Here are two types of cells: an animal cell and a plant cell. The plant cell is angular compared to the animal cell. What plant cell structure gives the cell its angular shape?

The cell wall is what gives plant cells their shape. The cell wall, not to be confused with the cell membrane, is a rigid structure made up of long cellulose fibers, branching hemicellulose fibers, and pectin. The fluid pressure inside the cell also contributes somewhat to their shape.