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What is the function of stomata?

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Quick Answer

Stomata are microscopic openings on the surfaces of plant leaves that allow for the easy passage of water vapor, carbon dioxide and oxygen. They are crucial to the function of leaves as photosynthesis requires plenty of carbon dioxide as well as the release of waste oxygen and excess water. "Stomata" means "mouth" in the Greek language.

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What is the function of stomata?
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Full Answer

While the primary site of stomata is on leaf surfaces, they are found on all above-ground parts of the plant. Each stomata is composed of two guard cells surrounding an opening known as a stoma. The number of stomata that form depends on environmental conditions, with higher light levels and moisture or lower carbon dioxide levels causing a higher density.

Stomata are capable of opening and closing in response to environmental conditions, in particular light levels, where the presence of sunlight causes them to open. Plants benefit from this since they must take in carbon dioxide for photosynthesis to convert it, together with water, into sugar, but it also places them at risk. In warmer environments, and particularly in dry air, plants lose a great deal of water through their stomata. This creates the danger of depleting a plant's water stores, which are also crucial to photosynthesis.

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    What is the function of the lower epidermis?

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    The lower epidermis contains stomata cells that help prevent water loss and regulate the exchange of gases such as oxygen and carbon dioxide, enabling plants to survive. Other cells in the lower epidermis include a waxy cuticle to protect underlying layers, according to Education Portal. Transparency in epidermal cells allows sunlight to pass through to chloroplasts, which are involved in photosynthesis.

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    What are stomata responsible for?

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    The main responsibilities of stomata, tiny openings on the bottoms of plant leaves, is the intake of carbon dioxide and the release of oxygen. These are necessary for photosynthesis to take place, since this process uses carbon dioxide and produces oxygen as a waste product.

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    Where are stomata found?

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    The stomata in plant cells can be found in the epidermis of leaves, stems and other parts of the plant involved in gas exchange. The pores inside the spongy layer of the plant leaf help aid in the exchange of gases between the leaf and its environment, and these pores eventually open up to the outside through the stomata.

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    What causes the stomata to open and close?

    A:

    There are guard cells surrounding each stoma that cause them to open or close throughout the life cycle of the plant. This occurs in response to water and ion concentration in the plant cell, according to Pearson Education.

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