How does transpiration occur in mesophytes?
Transpiration is the loss of water vapor from the areal parts of plants, especially leaves . Most of transpiration occurs through stomata, and can be thought of as a necessary “Cost” associated with the opening of stomata to allow the diffusion of carbon dioxide gas from the air for photosynthesis. Stoma is a tiny opening ore pore, found mostly on the underside of plant leaf and used for gas exchange. The pore is surrounded by a pair of guard cells which are responsible for regulating its opening and closing . Air containing carbon dioxide enters the plan through these openings where it gets used in photosynthesis. Oxygen produced by photosynthesis exits through the same openings. Also, water vapor is released in to the atmosphere through these pores. Plants usually have more stomata on the lover epidermis than the upper dermis .
