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Stomata Definition
Stomata – Definition: A stoma (plural: stomata) is a tiny pore on the surface of a leaf that allows gas exchange between the leaf and the atmosphere. Carbon dioxide (CO2) enters the leaf through the stomata and oxygen (O2) leaves the leaf. The stomata are also used for water vapor loss from the leaf.
What is the Structure of Stomata?
Stomata are small, pores in the surface of a leaf that allow gas exchange between the leaf and the atmosphere. The stomata surrounded by two guard cells, which open and close the pore. The number and size of the stomata vary among different species of plants.
A Stoma’s Structure Made of the Following:
A stoma’s structure is made of the following: an opening in the abdominal wall, an inner lining of mucous membrane, and an outer layer of skin. The mucous membrane produces a secretion that lubricates the stoma and protects it from infection. The outer layer of skin protects the stoma from injury and infection.
What is the Purpose of Stomata?
The purpose of stomata is to allow the passage of gases between the atmosphere and the plant’s internal tissues. Carbon dioxide required by plants for photosynthesis, so stomata must open to allow in carbon dioxide. Plants also release water vapor and oxygen gas through their stomata, so they must also close when it is hot or dry outside to prevent water loss.
