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After traveling from the roots to stems through the xylem, water enters leaves via petiole (i.e., the leaf stalk) xylem that branches off from that in the stem.
Describe how water potential, evapotranspiration, and stomatal regulation influence how water is transported in plants. Explain how photosynthates are transported in plants. The structure of plant roots, stems, and leaves facilitates the transport of water, nutrients, and photosynthates throughout the plant.
Describe how water potential, evapotranspiration, and stomatal regulation influence how water is transported in plants. Explain how photosynthates are transported in plants. The structure of plant roots, stems, and leaves facilitates the transport of water, nutrients, and photosynthates throughout the plant.
When the water eventually reaches all the cells of the leaves, most of them go out of the tiny pores which are present in these leaves. You might know the names of these pores, they're called stomata.
Transpiration (evaporation) occurs because stomata in the leaves are open to allow gas exchange for photosynthesis. As transpiration occurs, evaporation of water deepens the meniscus of water in the leaf, creating negative pressure (also called tension or suction).
Water in the soil is absorbed by the roots and travels through the stems to the leaves. Water carries nutrients back and forth between roots and leaves. During photosynthesis, plant leaves need water, nutrients and sunlight to make their own food.
8 de feb. de 1999 · Transpiration is the process of water evaporation through specialized openings in the leaves, called stomates. The evaporation creates a negative water vapor pressure develops in the surrounding...
