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Transpiration
leaving cert biology
| 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 |
Created by:
PHealy
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