O2 and CO2 are carried by the blood.
Gases moves by diffusion that is, they move from an area of higher concentration to an area of lower concentration.
The lining of the alveoli most be moist to help gases diffuse.
Aquaporins, which are specialized proteins in the cell membrane, are believed to be responsible for the rapid water exchange in plant cells. These proteins facilitate the movement of water molecules across the membrane, allowing for efficient water transport within the cell.
Gills have a large surface area covered by thin, moist membranes that are highly vascularized, allowing for efficient exchange of gases (oxygen and carbon dioxide) between water and a fish's bloodstream. The gill's structure and counter-current flow system in fish enhances the exchange of gases by maintaining a steep concentration gradient across the respiratory membrane, facilitating efficient gas exchange.
gas exchange
A decrease in the surface area of the respiratory membrane will result in a decrease in gas exchange.
The thin barrier that allows for the efficient exchange of gases between the lungs and the blood is called the respiratory membrane. It consists of the alveolar walls, capillary walls, and their basement membranes. This structure is essential for the diffusion of oxygen and carbon dioxide during respiration.
One of the most important functions of the cell membrane is to regulate the movement of dissolved substances (such as ions and nutrients) across the membrane. This selective permeability helps maintain internal cellular conditions and control the exchange of molecules with the external environment.
are both flat/thin and have folded membranes
Hui Li has written: 'Proton exchange membrane fuel cells' -- subject(s): Proton exchange membrane fuel cells
Diffusion
gas exchange
The process by which gaseous exchange occurs at the alveolar-capillary membrane is called external respiration. This involves the exchange of oxygen and carbon dioxide between the alveoli in the lungs and the blood capillaries surrounding them.
Fei Gao has written: 'Proton exchange membrane fuel cells modeling' -- subject(s): Mathematical models, Proton exchange membrane fuel cells