Gas exchange is a process that involves the swapping ... Gases dissolve and form a solution then pass through the cell membrane. Need some extra resources to support your biology lessons?

Many spongy mesophyll cells are in contact with the air spaces, providing a large surface area for gas exchange to happen. The spongy mesophyll cell membranes are also thin, moist and permeable ...

For the first time, we've been able to live-image the lung as it forms, and quantify and measure those cellular movements that come together to make an organ with a surface area large enough for gas ...