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WorksheetsTranspiration in plants
Total questions: 20
Worksheet time: 11mins
Transpiration is the biological process by which water is lost in the form of water vapour from the aerial parts of the plants
True
False
1
2
3
1
2
3
1
2
3
A high temperature lowers the relative humidity and opens the stomata even in darkness. As a result, the rate of transpiration increases.
True
False
The stomata open during the day and close in the dark. Presence of light is directly proportional to the rate of transpiration.
True
False
A leaf having more surface area will show less transpiration rate than the leaf with a lesser surface area.
True
False
(a) moves water from roots to the leaves
(a) moves food from the leaves to the rest of the plant
What does the xylem transport in a plant?
Water and dissolved sugars
Water and dissolved mineral salts
Water only
What is transpiration?
The movement of water from the root hair cells
The release of energy in plant cells
The evaporation of water from the leaves
How do root hair cells absorb water?
By osmosis
By difussion
What is the movement of sugars through a plant called?
Translation
Translocation
What happens to the transpiration rate as the temperature increases?
It decreases
It increases
How are sucrose and amino acids transported in a plant?
Through the xylem
Through the phloem
Why does water loss slow down if a plant is put into a plastic bag?
The humidity increases
The temperature increases
What happens to the rate of transpiration if wind speed increases?
It decreases
It increases
Water moves through the xylem vessels in a continuous transpiration stream:
root → stem → leaf
stem → root → leaf
leaf → stem → root
................... regulate the opening and closing of the stomata and also perform photosynthesis.
Guard cells
Cuticle
The mechanism of transpiration in plants is performed by:
Stem
Xylem
Phloem
All of these
