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Transpiration

leaving cert biology

QuestionAnswer
Name the two types of cell which make up xylem tracheids and vessels
what does the xylem transport? water and minerals
what is transpiration? the loss of water vapour from the leaves of a plant
What is the movement of water through the plant called? the transpiration stream
how does water move into the roots? by osmosis
how do minerals move into the roots? by active transport
what is the plant cell wall made from? cellulose
name the processes by which water moves up the stem root pressure, transpiration pull and capillary action
how is transpiration pull created? by water evaporating from the leaves
what is the force that attracts water molecules to each other called? cohesion
what is the force that attracts water molecules to the stem called? adhesion
the cohesion tension theory to explain water movements in plants was first explained by which scientists Dixon and Joly
what feature of xylem tissue allows water to move up through them? they are narrow
Name the pores on a leaf through which water is released Stomata
Which gas controls the opening and closing of stomata Carbon Dioxide
Created by: PDervin