1. Lab 9: Transpiration

2. Lab 9: Transpiration Description
test the effects of environmental factors on rate of transpiration
temperature
humidity
air flow (wind)
light intensity

3. Lab 9: Transpiration Concepts transpiration stomates guard cells xylem
adhesion
cohesion
H bonding

4. Lab 9: Transpiration Conclusions transpiration transpiration  wind
 light
transpiration
 humidity

5. Results: Transpiration Rate
Courtesy of Cheryl Massengale
Water Level in Millimeters
Condition
0 Min.
10 Min.
20 Min.
30 Min.
Room
69.1
Fan
73.6
72.8 .8
72.0
1.6
Light
73.0
72.5 .5
72.2
71.8
1.2
Mist
72.3 .2
71.9 .6