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Question
Transpiration rate is reduced ______.
Options
due to less surface area of leaf.
due to bending of leaf.
by sunken stomata.
all of these.
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Solution
Transpiration rate is reduced due to less surface area of leaf, bending of leaf and by sunken stomata.
Explanation:
Each of these modifications serves as an effective mechanism for plants to conserve water. A smaller leaf surface area directly reduces the total number of stomata available for evaporation, while the rolling or bending of leaves traps escaping water vapour to create a highly humid pocket of air that slows down further moisture loss. Similarly, sunken stomata are deeply recessed within pits, which protect them from direct airflow and create a localised microclimate of still, humid air that dramatically lowers the overall rate of transpiration.
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