What are small openings on the undersides of leaves through which carbon dioxide enters a plant?
Stoma (or plural form stomata for a number of stoma)
The stomata are openings in plant leaves through which gasses pass in and out. During the day carbon dioxide passes from the air through the stomata to the leaves and oxygen, produced by the leaf, passes back out through them. At night plants yield up small amounts of carbon dioxide through the stomata.
(brooke,13) water is soaked up through roots & carbon dioxide is just absorbed Carbon dioxide is absorbed by the following process. There is a spongy mesophyll, a loose tissue with many air spaces between its cells. These air spaces connect with the extrerior through stomata porelike openings in the underside of the leaf that allow carbon dioxide and oxygen to diffuse into and out of the leaf.
Carbon Dioxide enters the leaf through the stomata, which are openings on the underside of the leaf where the exchange of gases occur. Stomata (singular - stoma) take in carbon dioxide and let out oxygen (in the form of water vapour). Carbon dioxide exchange happens generally during the day and the exchange of water vapour (transpiration) generally at night .
In animals: The lungs... they inhale Oxygen, which then passes into the bloodstream, through tiny capillaries in the lung lining.Some blood flowing through the lung lining has excess carbon dioxide, which is passed through to the lungs and exhaled. In plants: carbon dioxide is absorbed through small openings called stomata. During the day photosynthesis uses it in combination with sunlight to produce energy. At night, without sunlight, the process is, sort-of, reversed, and the stomata…
The raw materials for plants are Carbon dioxide, water, light and small amounts of chemicals like nitrogen, phosphorous and potassium. Plants take in carbon dioxide through their tiny openings, the stomata, from the surrounding air . They take water from the soil through their roots. The other chemicals are dissolved in the water and also absorbed through the roots.
During the respiratory system, oxygen travels through the respiratory tract and diffuses to the red blood cells from alveoli which receives carbon dioxide from the RBC's. The carbon dioxide comes from cells in the body. When the RBC's travel through the body to transfer oxygen to the cells it receives carbon dioxide. The carbon dioxide enters the alveoli and travels through the respiratory tract and is breathed out.
All insects do not have lungs; oxygen and other gases like carbon dioxide pass through their exoskeleton through tiny valves called spiracles. Spiracles are the small openings that connect extensive branching tubes within the insects body to the outside air. Oxygen and carbon dioxide (generally) diffuse into the tubes and across the surfaces directly into cells and tissues.
Because diamond is carbon that is crystallized, or structured, in a regular, orderly and repeating pattern. That pattern creates consistent openings, allowing light to flow through. Carbon atoms by themselves are by default an unorganized mess, and thus do not have consistent openings and hence light does not flow through.