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Transpiration
Question | Answer |
---|---|
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 |