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Biology, Science
10th -
12thgrade
Factors Affecting Transpiration Rate
10 questions
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- 1. Multiple ChoiceWhich of the following is not capable of speeding up the rate of transpiration in plants?increase in sunlight intensityincrease in atmospheric carbondioxideincrease in leaf temperatureincrease in wind speed
- 2. Multiple ChoiceTranspiration is the loss of ……………………….from the …………………… of plantswater, stemwater, leaveswater vapour, leaves
- 3. Multiple Choiceplants with large leaves will transpire faster than plants with smaller leaves. Which of the following explains why?plant with large leaves carry more waterplants with large leaves have more stomata in their lower surfaceplants with large leaves have more stomata per unit areaplants with large leaves blow readily in the wind
- 4. Multiple Choice
Which of the following can cause the stomata to open?
increase in wind speed
increase in humidity
increase in light intensity
decrease in temperature
- 5. Multiple ChoiceIncreased environmental temperature results in increased rate of transpiration because of ………………..increased kinetic energy of the water molecules in the leaf xylemincreased evaporation of water from the substomatal air spacesincreased diffusion of water vapour from the surfaces of the mesophyl cellsincreased evaporation of water from the surfaces of the mesophyl cells
- 6. Multiple Choice
Which of the following is not capable of speeding up the rate of transpiration in plants?
increase in sunlight intensity
increase in atmospheric carbon dioxide
increase in leaf temperature
increase in wind speed
- 7. Multiple Choice
Which of the following conditions will favor a faster rate of transpiration?
decreased humidity and increased wind speed
increased temperature and reduced wind speed
reduced temperature and high light intensity
increased humidity and reduced wind speed
- 8. Multiple Choice
Tick the factors affecting rate of transpiration.
Temperature
Surface area
Light intensity
Air humidity
Wind
- 9. Multiple Choice
If the surrounding temperature become higher, plants will loss water _______ through the stoma
faster
slower
- 10. Multiple Choice
The faster the movement of air outside the leaf, the ________ the rate of transpiration.
slower
faster
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