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प्रश्न
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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उत्तर
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.
संबंधित प्रश्न
Which one of the following favours the fastest transpiration rate?
Mention the two ways in which transpiration helps the plants.
Given below is an example of a certain structure and its special functional activity:
Chloroplasts and Photosynthesis.
In a similar way, write the functional activity against each of the following:
Thick cuticle and ………………………..
Suppose you have a small rose plant growing in a pot. How would you demonstrate transpiration in it?
Given below is an apparatus which has setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:
List two adaptations in plants to reduce the above process.
Choose the correct answer:
In herbaceous plants, following percentage of absorbed water comes out __________
Give Reasons for the following:
Plants absorb more water than their requirement
Give Reasons for the following:
Why do some herbaceous plants show wilting of leaves during mid-day which again recover in the evening?
What are the advantages of transpiration to the plant?
