Transpiration

• The palisade mesophyll is where photosynthesis takes place
• Water is constantly eveporating from the surface of the leaves this is called transpiration
• Transpiration starts with the evaperation of water from cells inside the leaf
• The water Vapor then diffuses through the air spaces in the spongy mesophyll and out the leaf through the stomata
• the water passes through the xylem into the leaf to replace the water that has been lost
• Water is drawn into the root hair cells and up the xylem vessels to the leaf
• The rate of transpiration is great at higher temperatures
• Transpiration is faster in dry conditions when the air is not humid
• The rate of transpiration increases in windy conditions because wind removes water vaopur allowing more water to evaporate
• The rate of transpiration increases when light intensity increases