Pages in this set

Page 1

Preview of page 1
Transpirat ion
- Transpiration is the loss of water vapour (by evaporation from the
stomata) through the aerial parts of plants
- Water pulled through stem by capillary action
- Water lost through stomata, causing suction more taken in through
roots continuous flow of water = transpiration stream
- Transpiration…

Page 2

Preview of page 2
Transpirat ion

How shoot takes in water:
-Loss of water vapour from leaves (due to evaporation)
-Water pulled up xylem in continuous column as water molecules
are cohesive
-Water moves into xylem from roots to replace it




Connects cut shoot to Connected to capillary tubing
potometer. Greased + when tap…

Page 3

Preview of page 3
Transpirat ion
Vascular bundles
- Vessels (tubes) which transport water, minerals, sugars and hormones through plant
- Xylem- transports water + minerals from roots upwards
- Phloem- transports sugars (sucrose) + hormones from leaves up or down plant
In stem
In roots In leaf
Remember: XP (like windows)



X =…

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »