1. Structural Support and Protection: The cell wall provides rigidity and shape to the cell, helping it maintain its structure and resist osmotic pressure. This is especially important for plant cells, which need to withstand the turgor pressure created by water entering the cell.

2. Regulation of Cell Growth and Development: The cell wall plays a crucial role in regulating cell growth and development by controlling the expansion and division of the cell. It also helps to maintain the overall shape and architecture of tissues and organs.