Mention 2 structural features of the stoma/stomatal pore that help in the exchange of gases.
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Structure of Stomata.
Stomata are the tiny pores present in the epidermal surface of leaves. The pores are guarded by two kidney-shaped cells known as guard cells. The inner wall of guard cell towards the stomata is thicker as compared to the outer walls....
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Specialized cells known as guard cells surround stomata and function to open and close stomatal pores. Stomata allow a plant to take in carbon dioxide , which is needed for photosynthesis. They also help to reduced water loss by closing when conditions are hot or dry
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