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WorksheetsIGCSE B7.1 transport in plants (Transpiration)
Total questions: 13
Worksheet time: 10mins
What is defined as the loss of water vapour from plant leaves by evaporation of water at the surfaces of the mesophyll cells followed by diffusion of water through the stomata?
Translocation
Transpiration
Gas exchange
Cohesion
During transpiration, water evaporates from the surface of which cells in the leaf?
(a)
What is the name of the pores in the lower epidermis that allow water vapour to leave the leaf?
(a)
Which cells control the size of the opening of the stomata to regulate water loss?
(a)
Water first enters a plant by being absorbed by which type of cell?
(a)
Through which cells does the water have to travel to move from the root hair cell to the xylem in the centre of the root?
(a)
What property of water allows it to be pulled along the xylem when water evaporates from the leaves?
Adhesion
Cohesion
High boiling point
Good solvent
How does water vapour in the air space leave the leaf?
Osmosis
Diffusion
Transpiration
Translocation
How would you expect increasing the temperature to affect the rate of transpiration?
Increase it
Decrease it
No change
Can't predict
How would you expect increasing the humidity to affect the rate of transpiration?
Increase it
Decrease it
No change
Can't predict
How would you expect decreasing the surface area of leaves to affect the rate of transpiration?
Increase it
Decrease it
No change
Can't predict
How would you expect changing the time of day to affect the rate of transpiration?
Increase it
Decrease it
No change
Can't predict
Explain, in as much detail as you can, how water moves through a plant from the soil to the air?
