What is the primary factor involved in water movement in plants?
Water moves from roots to the leaves through a process known as transpiration. About 90 percent of the water evaporates into the atmosphere. Plants require some water for metabolism and structure.RootsCarrots are big edible taproots. Spidery green onion roots are another familiar root type. The outer cellular layer, the epidermis, absorbs water from the plant’s environment. Most roots extract water from soil, but epiphytes use moisture in the air.Plant “Water Pipes”Water moves through xylem tissue once it crosses epidermal cells. This tubelike system transports water to leaves.Water LossWater evaporates from stomata pores on the plant’s surface. The openings are flanked by guard cells triggered by environmental conditions.Amount of WaterRainfall, temperature, humidity, wind and soil type are primary factors in the amount of water moving through plants.SignificancePlants cannot live without water. Water evaporation from plants contributes to atmospheric moisture.
