What is the primary structural function of the cell wall?

The primary structural function of the cell wall is to surround the cell membrane and provide support. The cell wall is a rigid layer found outside the cell membrane in plant cells, fungi, and some bacteria. It provides mechanical strength, protecting cells from external pressure and preventing them from bursting when they take up water. This structural integrity is crucial for maintaining the shape of the cell and allows plants to grow upright.

While other functions such as intracellular communication, assisting in photosynthesis, and managing waste disposal are essential for cellular activity, they do not define the primary role of the cell wall. The main focus of the cell wall is indeed its support and protective function, making option B the most accurate choice.