Stomata are tiny pores present on the surface of leaves (and sometimes on stems and other plant parts) that facilitate gaseous exchange, including the uptake of carbon dioxide for photosynthesis and the release of oxygen and water vapor. They also play a role in regulating water loss from the plant.
Share
Stomata are microscopic pores found in the epidermis of plant leaves, stems, and other organs. Their primary function is to regulate gas exchange, including the intake of carbon dioxide (CO2) for photosynthesis and the release of oxygen (O2) and water vapor. Stomata control water loss through transpiration and help maintain turgor pressure. Each stoma consists of two guard cells that can open and close, controlling the pore’s size. This regulation of gas exchange and water loss is crucial for balancing plant photosynthesis and preventing excessive water loss, contributing to the plant’s overall physiological well-being.