A turgid plant cell is one that is swollen and firm due to the pressure of water within its central vacuole. This pressure is known as turgor pressure, which helps maintain the cell’s shape and structural integrity.
When a plant cell is placed in a hypotonic solution, water enters the cell through osmosis, filling the vacuole. As the vacuole expands, it pushes against the cell wall, creating tension that keeps the cell rigid. This is essential for plant health, as it supports the plant and allows it to stand upright.
In contrast, when plant cells lose water and become flaccid, they can lead to wilting. Therefore, turgidity plays an important role in a plant’s ability to photosynthesize and grow effectively. Keeping cells turgid also aids in nutrient transport and overall physiological functions of the plant.