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.Continue Reading
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.Learn more about Botany
The function of chloroplasts is to convert sunlight, water and carbon dioxide into food for the plant. Chloroplasts are energy organelles, and are present in all types of plants.Full Answer >
Carbon dioxide enters the leaf through tiny openings called the stomata. These specialized apertures open during the day to allow for the exchange of carbon dioxide and water in a process known as transpiration.Full Answer >
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.Full Answer >
Stomatal density refers to the number of stomata present on plant leaves per square millimeter. Leaf stomata are small pores that facilitate gas exchange in plants. These pores allow carbon dioxide to be absorbed and water to be released.Full Answer >