What structure do plant cells have that animal cells do not?

The structure that plant cells have which animal cells do not is the cell wall. The cell wall is a strong and rigid outer layer made primarily of cellulose, which provides structural support and protection to the plant cell. It helps maintain the shape of the cell and also plays a crucial role in regulating the movement of substances in and out of the cell.

In contrast, animal cells lack a cell wall and instead have only a flexible cell membrane. This allows for greater flexibility and adaptability of animal cells but means they do not have the same level of structural support that a cell wall provides to plant cells.

The other structures mentioned, such as the cell membrane, vacuole, and ribosome, are found in both plant and animal cells. The vacuole, while primarily prominent in plant cells, can also be present in some animal cells, albeit in a smaller form. Similarly, ribosomes are essential for protein synthesis and are present in both types of cells. This distinction highlights the unique features of plant cells that aid in their functions and overall biological processes.