The structure found in both plant and animal cells but with different functions is the cell wall.

Here's the breakdown:

* Plant Cells: Have a rigid cell wall made primarily of cellulose. This provides structural support, protection, and helps maintain the shape of the cell.

* Animal Cells: Lack a true cell wall. They have a flexible cell membrane that helps regulate what enters and exits the cell.

Let me know if you'd like to learn more about cell structures!