In biology, the term "turgid" refers to a cell or tissue that is swollen or distended with water or other fluids, resulting in a firm and rigid structure. Turgidity is caused by the pressure exerted by the cell's vacuole against the cell wall, which provides support and maintains the cell's shape. The term is commonly used to describe plant cells, where turgor pressure is necessary for maintaining the rigidity and structural integrity of the plant tissue. Turgidity is also important in plant growth and development, as it enables the cells to stretch and elongate, which is necessary for the plant to grow towards the light and compete with other plants for resources.
