4.2 Transport in plants 0.0 / 5 ? Biology4.2 Transport in plantsIGCSEEdexcel Created by: 14mut64Created on: 12-05-19 09:39 Xylem Xylem structure: no living contents in the hollow xylem vessel thick wall continuous column cell walls are made of lignin lignin makes xylem water-proo Xylem's role: transports water and ions it is a transpiration stream has a continuous column of water moves water from roots to leaves water is lost through transpiration 1 of 2 Phloem Phloem: transports glucose from site of photosynthesis to other parts of plant have sieve plates that allow cytoplasm to be connected companion cell controlls movement of the contents 2 of 2
Comments
No comments have yet been made