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Question
Why are the stomata in most plants more numerous on the lower surface of a leaf instead of being on the upper surface?
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Solution
The lower surface of leaf is sheltered from direct sunlight. If more stomata are on the upper surface of a leaf, then excessive transpiration would occur, resulting in quick wilting of the plant. Hence most plants have more numerous stomata on the lower surface of a leaf to control the rate of transpiration.
RELATED QUESTIONS
How does temperature, light intensity and wind affect transpiration?
Distinguish between the following:
Transpiration and evaporation
Briefly explain how the rate of transpiration is affected by:
Humidity of the atmosphere
Explain the Term
Lenticular
Complete the following sentence with appropriate word:
The leaves of the __________ plants have cuticular wax.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
More transpiration occurs from the upper surface of a leaf.
State the Location:
Cuticle
Mark the most appropriate answer in the following:
Transpiration is very low during storms due to:
