Flexi Says: The cell wall, which is mainly composed of cellulose, is a protective layer outside the cell membrane that also provides support and strength to the plant cell. On the other hand, animals do not have a cell wall that surrounds the cell membrane because animals have other forms of structural support such as endo and exoskeleton. Also, the absence of the cell wall allows for increased flexibility and advanced cell/tissue specialization, which plants cannot achieve.
