Which statement is NOT true about the pressure-flow model of phloem transport?
A. Sugar produced by photosynthesis is actively transported into phloem cells.
B. Pressure is created in the phloem by the buildup of water and sugar.
C. Sugar is actively transported out of the phloem at a sink area such as the root.
D. Water is actively transported into phloem.
E. Phloem has been measured moving at a velocity of 1 m an hour.
Answer: D
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