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TA transpiration.notebook 1 April 14, 2016 Apr 1214:46 Potometers. Testing to see for transpiration. we are learning: What transpiration is and how it happens. The different Potometers that have been used through time. To set up fair tests to show transpiration Apr 1215:00 Water moves into the root hair cell by a process called osmosis. Apr 1215:03 Water moves from the root hair to the xylem by a process called O Apr 1215:07 Water flows in 1 direction, up the xylem (it also flows in the phloem, but this is 2 way). Apr 1215:12 The water travels into the leaf via the xylem Water moves out of the leaf by the stomata. Controlled by the guard cells. Apr 1215:19 Different types of potometer

TA transpiration.notebook April 14, 2016

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TA transpiration.notebook

1

April 14, 2016

Apr 12­14:46

Potometers. Testing to see for transpiration. 

we are learning:

What transpiration is and how it happens.

The different Potometers that have been used through time. 

To set up fair tests to show transpiration

Apr 12­15:00

Water moves into the root hair cell by a process called osmosis.

Apr 12­15:03

Water moves from the root hair to the xylem by a process called O­­­­­­

Apr 12­15:07

Water flows in 1 direction, up the xylem (it also flows in the phloem, but this is 2 way). 

Apr 12­15:12

The water travels into the leaf via the xylem

Water moves out of the leaf by the stomata. Controlled by the guard cells. 

Apr 12­15:19

Different types of potometer

TA transpiration.notebook

2

April 14, 2016

Apr 12­15:20

An experiment to show the transpiration of a leaf.

Method.

1) Collect a twig, from a tree, which has more than 2 leaves on it.

2) Collect a twig with no leaves on it

3) Collect a twig with only 1 leaf on it. 

4) Place each twig into a test tube

5) Fill each test tube 2/3rds full

6) Cover the water with a layer of oil.

7) Measure the height of the water and oil. Write it down in the results table. 

8) Place all 3 test tubes into a test tube holder. 

9) Label each test tube with your groups name in permanent marker. 

Write a hypothesis tin your book, to explain what you think will happen in this experiment.

Apr 12­15:27

Type of twig Height of water and oil before

Height of oil and water after

No leaves

1 leaf

__ leaves.  __ leaves. 

Results