In vascular plants: a) the xylem transports solutes throughout the plant, while the phloem is responsible for water transport. b) vascular tissue is only found in the flowers. c) water loss by evaporation is reduced by the waxy cuticle and apical meristems. d) water is drawn up from soil to the leaves in a process called transpiration.
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Xylem transports water and minerals from the roots to the leaves. Show more…
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Because of transpiration, water a. evaporates directly from the root surface. b. flows from leaf veins through the stem, toward the roots. c. exits the leaf through stomata, pulling water into the leaf from leaf veins d. exits xylem in leaf veins and enters phloem by osmosis.
Water moves up a plant’s stem as a result of ___________. A. the xylem pump; B. diffusion of water into roots; C. translocation of phloem sap; D. evaporation of water from the leaves; E. photosynthesis in xylem cells.
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Water transport from roots to leaves occurs mainly because of ____ . a. pressure flow b. differences in source and sink solute concentrations c. the pumping force of xylem vessels d. transpiration and cohesion of water molecules
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