What do plant cells have that animal cells do not?

Plant cells possess a cell wall, which is a rigid structure that provides support and protection to the cell. This cell wall is primarily composed of cellulose and distinguishes plant cells from animal cells, which do not have cell walls. The presence of a cell wall allows plants to maintain their shape and resist external pressures, contributing to the overall structural integrity of plant tissues.

In contrast, animal cells are surrounded only by a flexible cell membrane, which allows for a variety of shapes and sizes and enables a greater range of movement and interaction with their environment. The other components mentioned in the options, such as a more complex cytoskeleton, lysosomes, and a nucleus, are present in both plant and animal cells. The key distinction lies in the presence of the cell wall, making it a defining feature of plant cells.