# T H E   G R E E N H O U S E

Transpiration
&nbsp- Transpiration Rate
&nbsp- Transpiration Test

# Transpiration Test

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(NB!!! Click on the down arrow to see the other options).

1.) A solution which causes cells immerged in it to shrink is described as being

2) The water potential of a turgid cell will be

Which of these factors does not affect transpiration rate ?

4) Wilting of a young plant is caused by changes in

5)Water passes across the cortex of a root from the root hair to the xylem vessels as a result of the presence of

6)If a young seedling is taken from a box and planted out on a hot day it will die unless it is shaded and carefully looked after. The cause of this is most likely because the

7)If the osmotic potential of a plant is -1200 Kpa and its turgor pressure is 400 Kpa, what will be its water potential ?

8)If the cell refereed to in question 7 was placed in a solution with water potential of -1400, in which direction would the water molecules move by osmosis ?

9) If this same cell was now put in pure water, what would its osmotic potential be?

10) The following graph shows the rates of water absorption and transpiration that occurred in a sunflower plant during a 24 hour period.

From this evidence it is true to say that in

11) Which of the following statements is NOT TRUE?

12)Two water lily and 2 oak tree leaves are arranged on a pivot ( as seen in the diagram below) so that they balance exactly

What will occur to the balance of the pivot after a short time?

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Thinkquest Team 22016
Andrew Griffiths
Tim Sindle
Ben Harper