Yes gas is transferred through the alveolar/capillary membrane in the alveolus. Gas moves from the alveolar air sacs to the pulmonary capillaries.
alveoli
The alveoli are the structures in the respiratory system that are involved in the gas exchange function. They are tiny air sacs located at the end of the bronchioles in the lungs where oxygen from the air is taken up by the blood and carbon dioxide is released from the blood into the lungs to be exhaled.
Alveoli is where gas exchange occurs.
The major parts of the respiratory system include the lungs, trachea, bronchi, bronchioles, and alveoli. The lungs are the primary organ where gas exchange occurs, the trachea and bronchi function to transport air to and from the lungs, and the bronchioles help regulate airflow. The alveoli are responsible for oxygen and carbon dioxide exchange in the bloodstream.
Gaseous exchange occurs in the alveoli (singular = alveolus) of the lungs.
The vascular system, or respiratory system, deals with the exchange of oxygen to carbon dioxide. This exchange occurs in the alveoli sacs
In the respiratory system, it is the alveoli.In the circulatory system, it's the capillaries.They are similar in that both have walls that are only one cell thick, they are both the thinnest parts of their systems, and they are right next to each other. (They diffuse through to each other.)In the respiratory system it's the Alveoli and in the circulatory system it's the capillaries :D
The alveoli is the division of the respiratory system where gas exchange with the blood occurs. Oxygen from the inhaled air diffuses into the blood in the capillaries surrounding the alveoli, while carbon dioxide diffuses from the blood into the alveoli to be exhaled.
alveoli, which are tiny air sacs located in the lungs where oxygen and carbon dioxide exchange occurs.
Gas exchange
Your question is unclear. Are you asking what does the most in the respiratory system , then tiny little sacs called the alveoli do.
Gas exchange occurs in the alveoli in the respiratory system. The thin-walled structures allow diffusion of gases into and out of the capillaries.