A cell wall is a rigid outer layer that surrounds the cells of plants, fungi, and some bacteria. It provides structure and support, helping the cell maintain its shape. Made primarily of a substance called cellulose in plants, the cell wall acts like a protective barrier, preventing harmful substances from entering and keeping the cell safe.
In addition to protection, the cell wall plays a crucial role in regulating water intake. It allows the cell to absorb water while preventing it from bursting. This is especially important for plants, as it helps them stay upright and healthy, even in varying environmental conditions.
