Biology: Year 9 Term 4: Xylem/Phloem 0.0 / 5 ? BiologyPhotosynthesis and transpirationPlant StructureGCSEAQA Created by: Charlotte HerondaleCreated on: 17-12-18 15:27 Xylem transport what, from where to where? (2) Water & mineral ions, from roots to leaves 1 of 12 Phloem transport what, from where to where? (1) Glucose, from leaves to rest of plant 2 of 12 In the roots, where are the xylem tubes? (2) In an x-shape from the middle outwards 3 of 12 In the roots, where are the phloem tubes? (2) Small clusters at the edges between lines of X of xylem 4 of 12 In the stem, where are the xylem tubes? (2) In a ring, facing the inside of the stem 5 of 12 In the stem, where are the phloem tubes? (2) In a ring, facing the outside of the stem 6 of 12 What are xylem made of? (3) Dead cells in hollow tube, strengthened by rings/spirals of lignin 7 of 12 What are phloem made of? (3) Living cells with sieve plates (not cell walls) and companion cells for energy 8 of 12 Why are sugars transported? (2) Respiration for energy for metabolism 9 of 12 Why is water transported? (2) Photosynthesis and support as vacuoles swell 10 of 12 Why are minerals transported? (2) Proteins/molecules made for growth/repair 11 of 12 Why are aphids so dangerous to plants? (3) They take glucose directly from the phloem, taking it away from metabolism, killing the plant 12 of 12
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