The cells of plants and animals are similar expect for a few different structures like the shape of the cells and cell wall. They differ in cell shape since animal cells are rounded and it has irregular shape while plant cells have fixed shape which is rectangular. Another structure is a cell wall. Animal cells don’t have cell wall while plant cells have. Plant cell wall is a structure surrounding the cell that provides a number of functions such as strength to support the plant, Flexibility, Water-proofing, Barrier to pests, Protection against environmental stress, signaling and sensing.