Transport in Plants 4.0 / 5 based on 1 rating ? Biologytransport in plantsIGCSEEdexcel Created by: francescakgCreated on: 23-04-17 14:55 UNICELLULAR water, minerals and sugars diffuse directly in and out of the cell through cell membrane. Diffusion rate is quick because it is a short distance. 1 of 7 MULTICELLULAR direct diffusion is too slow. Need transport systems to move substances to/from cells quickly 2 of 7 XYLEM VESSLES carry water & minerals from roots up the shoot to leaves. 3 of 7 ROOT HAIR CELLS each branch covered in millions of microscopic hairs. Gives big surface area for absorbing water/minerals. Water enters cell by osmosis. 4 of 7 TRANSPIRATION loss of water from a plants, caused by evaporation/diffusion. Happens mostly in leaves. 5 of 7 EVAPORATION IN PLANTS evaporation creates shortage of water in leaf, more water is drawn up from rest of plant through XYLEM VESSELS. Constant stream of water. 6 of 7 TRANSPIRATION RATE AFFECTED BY (4) LIGHT INTENSITY. TEMPERATURE. WIND SPEED. HUMIDITY. 7 of 7
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