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  • Which of the following reduces the rate of transpiration?Option: 1 High atmospheric humidityOption: 2</

Which of the following reduces the rate of transpiration?

Option: 1

High atmospheric humidity


Option: 2

Low temperature


Option: 3

Compact mesophyll cells


Option: 4

All of these


Answers (1)

best_answer

 

 

 

Leaf Structure:

  • Thickness of Cuticle: decreases transpiration
  • Number and Position of Stomata
  • Sunken Stomata: device to reduce the rate of transpiration by providing an area where little air movement occurs.
  • Mesophyll: Compact mesophyll (as having more of palisade tissue and fewer intercellular spaces) reduces transpiration while a loose mesophyll (having more of spongy tissue and larger intercellular spaces) increases transpiration.
  • Leaf Modifications: prickles, leaf spines, scaly leaves, phyllodes, phylloclades (instead of leaves), are all modifications found in xerophytes to reduce transpi­ration.

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Compact mesophyll cells reduces the rate of transpiration. If outer air is more humid, it will reduce the diffusion of water vapour from leaves to the outer atmosphere. Hence, the correct answer is option d.

 

Posted by

Nehul

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