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- 1. Multiple ChoiceWhat is being produced during photosynthesis?sugar and oxygensugar and carbon dioxideglucosegases
- 2. Multiple ChoiceWhat gas is TAKEN IN during photosynthesis?argonnitrogenoxygencarbon dioxide
- 3. Multiple ChoiceWhat gas is RELEASED during photosynthesis?carbon dioxideargonoxygennitrogen
- 4. Multiple Choice
What is transpiration?
Excess water being released from the aerial parts of plants in the form of water vapor
Excess sugar being released from the leave
The way a plant makes its food
When the plant uses sugar for energy
- 5. Multiple Choice
Water transported from stems to leaves through what?
xylem
phloem
stems
roots
- 6. Multiple Choice
Which of the following indicates the pathway of water through a plant?
root hair cell --> xylem --> Mesophyll --> substomatal space --> stomata
substomatal space -- > stomata --> root hair cell --> xylem --> Mesophyll
xylem --> stomata --> root hair cell --> Mesophyll --> Substomatal space
- 7. Multiple Choice
Select all of the environmental factors that would increase transpiration.
Increased humidity
Increased wind speed
Increased temperature
Decreased surface area
- 8. Multiple Choice
Which statement correctly identifies the substance and direction it is transported in the xylem?
Water, only upwards
Glucose, only upwards
Water, up and down the plant
Glucose, up and down the plant
- 9. Multiple Choice
Transpiration isthe movement of water through a plant from the roots up the stemthe loss of water from the leaves of a plant by the process of evaporationthe flow of water into plant roots by osmosis from the soilthe process of minerals and sugars moving through plant veins - 10. Multiple ChoiceWhich feature would be most helpful to a plant in a desert?small leaveslarge seedssmall rootssmelly flowers
- 11. Multiple ChoiceCells that control the opening and closing of stomataCuticleGuard cellVascular tissueStomata
- 12. Multiple Choice
Which is true?
99% of water taken by the plant evaporates through transpiration
9% of water taken by the plant evaporates through transpiration
Evaporation through transpiration accounts only for 1% of all the water the plant takes in
Evaporation through transpiration is minuscule
- 13. Multiple Choice
Stomata opens during night and closes during day
True
False
- 14. Multiple Choice
there are more no of stomata on
Ventral side
Dorsal side
- 15. Multiple Choice
Guttation is the loss of water through -
Hydathodes
Cuticle
Stomata
Lenticles
- 16. Multiple Choice
Factors which affect transpiration are (external)
Sunlight
Wind speed
Humidity
Rain
- 17. Multiple Choice
Adaptations in plant to reduce transpiration are -
No of stomata
Thickness of cuticle
Loss of leaves
All of the above
- 18. Multiple Choice
What is significance of transpiration
Creates suction force
Helps in distribution of water and nutrients
Cooling effect for plants
All of the above
- 19. Multiple Choice
The function of cobalt chloride paper is
To change colour when exposed to sand
To indicate moisture
To change colour according to the acidity or basicity of substance .
- 20. Multiple Choice
More root hairs will lead to
Less transpiration
More transpiration
Closure of stomata
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