Which statements about the apoplast and symplast pathways are correct? 1 In the apoplast pathway, water molecules move through free spaces in the cellulose cell walls of plant roots. 2 In the symplast pathway, water molecules diffuse through the cytoplasm and plasmodesmata of cells. 3 Water molecules travelling through plant tissue move by mass flow along the apoplast pathway. 4 The Casparian strip blocks the symplast pathway and forces all water molecules to enter the cytoplasm of endodermis cells.