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प्रश्न
Choose the correct answer:
Stomata open during day time because guard cells
विकल्प
Do photosynthesis and synthesis osmotically active.
Are of thin walls.
Are of bean shape.
Help in exchange of gases.
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उत्तर
Stomata open during day time because guard cells do photosynthesis and synthesis osmotically active
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संबंधित प्रश्न
Given below is an experimental set up to study a particular process:

(i) Name the process being studied.
(ii) Explain the process named in (i) above.
(iii) Why is the pot covered with a plastic sheet?
(iv) Mention one way in which this process is beneficial to the plant.
(v) Suggest a suitable control for this experiment.
Draw a neat diagram of the stomatal apparatus found in the epidermis of leaves and label the Stoma, Guard cells, Chloroplast, Epidermal Cells, cell wall and Nucleus.
Name the following:
The process of getting rid of excess water in the form of water vapour through the stomata.
Complete the following sentence with appropriate word:
95% of the total transpiration takes place through ________.
Guard cells help in regulating the ______.
The upper layer of mesophyll in a leaf consists of elongated ground tissue called ______.
When guard cells are flaccid, the stoma must be ______.
Name the three kinds of transpiration.
