Transport in plants - AS Biology 3.0 / 5 based on 1 rating ? BiologyBiological molecules, organic chemistry and biochemistryASOCR Created by: GracieCreated on: 06-01-13 13:22 Xylem transports what substance ? water 1 of 12 State the substance that thickens the walls of xylem vessels ? lignin 2 of 12 Water is drawn into the root, down the what gradient ? water potential 3 of 12 The casparian ***** prevents which pathway ? apoplast 4 of 12 What is it called when water molecules are attratched to each other ? adhesion 5 of 12 When there is low humidity, does the rate of transpiration decrease or increase ? increase 6 of 12 What is a side effect of gasous exchange ? transpiration 7 of 12 A sink is where sucrose is ? unloaded 8 of 12 What type of cells are in xylem ? dead 9 of 12 What direction can water move up xylem ? upwards 10 of 12 What is phloem cell walls made out of ? cellulose 11 of 12 What process is the loading/unloading of sucrose into the phloem ? active 12 of 12
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