Animal cells do not require a cell wall because they have a flexible and dynamic plasma membrane that allows for cell movement and shape changes. Unlike plant cells, animal cells do not need the rigid support provided by a cell wall as they do not undergo extensive physical processes like cell division. Additionally, animal cells do not require a central vacuole because they obtain nutrients and remove waste through the process of diffusion directly across their plasma membrane, whereas plant cells rely on the central vacuole for storage and regulation of water, nutrients, and waste.
