Alveoli
The small sacs are alveoli which is where oxygen and carbon dioxide are exchanged
Carbon dioxide passes through the stomata, which are small openings on the surface of plant leaves that allow gases to be exchanged with the surrounding environment. This exchange of gases, including carbon dioxide and oxygen, is essential for photosynthesis and respiration in plants.
Frizzophigus
When air enters the body through the nose or mouth, it travels down the trachea (windpipe) into the lungs. In the lungs, oxygen is exchanged with carbon dioxide through the alveoli, small air sacs where gas exchange takes place. This oxygen is then carried to individual cells in the body through the bloodstream.
Carbon dioxide and oxygen are exchanged in the lungs during the process of respiration. Oxygen from the air we breathe diffuses into the blood in the lungs, while carbon dioxide from the blood diffuses into the air we exhale. This exchange occurs in the alveoli, which are small air sacs in the lungs.
Oxygen moves from the lungs into the bloodstream through a process called diffusion. This occurs at the alveoli, which are small air sacs in the lungs where oxygen and carbon dioxide are exchanged with the blood. Oxygen diffuses from an area of high concentration in the alveoli to an area of lower concentration in the blood, facilitated by the difference in partial pressures.
Capillaries are the small blood vessels where oxygen is exchanged for carbon dioxide. They are located throughout the body and allow for the exchange of gases between the blood and tissues.
Exchange of gases between an organism and its environment refers to the process of taking in oxygen and releasing carbon dioxide. In animals, this occurs in the respiratory system where oxygen is absorbed into the bloodstream through the lungs and carbon dioxide is expelled. In plants, gases are exchanged through small openings in the leaves called stomata during photosynthesis.
Arterioles are very small arteries which lead from arteries in to a capillary bed where gases, wastes and nutrients are exchanged.
You don't specify which organism you are asking about, but I assume you mean in humans. These processes happen all over the body between the blood capillaries and the cells. If you mean exchange with the outside world, then oxygen is exchanged in the lungs, food nutrients in the small intestine, and nitrogenous waste in the kidneys. However, waste carbon dioxide is exchanged through the lungs and other wastes through the skin.
Oxygen and carbon dioxide. (O2) and (CO2)
The alveoli are small sacs within the lungs where gas exchange occurs. They are located at the ends of bronchiole branches.