Leaves Tiny Openings
The tiny openings present on the leaf surface. What are they called? What is the function of the same?
Leaves Tiny Openings
If you carefully observe a cross section of a leaf under the microscope or in any picture, you will notice that some cells contain green dots. These Green Dots are cell organelles called chloroplasts, which contain chlorophyll. Stomata are tiny pores present on the surface of the leaves. A massive amount of gaseous exchange takes place in the leaves through these pores for the purpose of photosynthesis. But it is important to note here that exchange of gases occurs across the surface of stems, roots, and leaves as well. Since a large amount of water can also be lost through the stomata, the plant closes the pores when it does not need carbon dioxide for photosynthesis. The opening and closing of the pores is a function of the guard cells. The guard cells swell when water flows into them, causing the stomatal pores to open; similarly, the pores close is in the guard cells shrink.
– Written By Aruja
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