According to the pressure flow hypothesis of phloem transport, Group of answer choices solute moves from a high concentration in the source to a lower concentration in the sink. water is actively transported into the source region of the phloem to create the turgor pressure needed. the pressure in the phloem of a root is normally greater than the pressure in the phloem of a leaf. the formation of starch from sugar in the sink increases the osmotic concentration. the combination of a high turgor pressure in the source and transpiration water loss from the sink moves solutes through phloem conduits.