What forms in eukaryotic cells with cell walls?

In eukaryotic cells with cell walls, such as those in plants, fungi, and some protists, the cell wall is primarily composed of polysaccharides. In plants, the cell wall is mainly made of cellulose, while in fungi, it is composed of chitin or other polysaccharides. The cell wall provides structural support, protection, and helps regulate water intake. Additionally, it plays a role in cell communication and growth.