plant transport systems 0.0 / 5 ? BiologyCells, tissues and organsIGCSEEdexcel Created by: vanessaCreated on: 16-12-13 12:30 what is transpiration water evaporating of the surface of leaves 1 of 7 where has the most stomata the lower epidermis so the least evaporation takes place 2 of 7 explain the mass potometre as the water goes up in the plant, the oil will lower so we can see how much has moved, and the oil stops water evaporating 3 of 7 why are water molecules pulled up through the xylem they are cohesive 4 of 7 four factors that affect transpiration? wind, heat, humidity, light 5 of 7 four differences between the xylem and the phloem 1. xylem carries water and minerals, phloem carries sugars, xylem = passive phloem = active, xylem = up phloem = all direction, xylem cells = dead, phloem cells = alive 6 of 7 what are vascular bundles bunches of xylem and phloem vessels in the stem/leaves/roots 7 of 7
Comments
No comments have yet been made