gas exchange

1. The diffusion of gases from an area of higher concentration to an area of lower concentration, especially the exchange of oxygen and carbon dioxide between an organism and its environment. In plants, gas exchange takes place during photosynthesis. In animals, gases are exchanged during respiration.

Example Sentences

Chilling a washed egg reduces that risk, because low temperatures slow down gas exchange between air and egg.

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Eventually, membrane or no, there will be some gas exchange, causing the egg white to become more watery and leak into the yolk, ultimately breaking the yolk.

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“If you imagine that lots of organic matter is leaving the surface waters and sinking, this is effectively removing carbon from the surface and moving it to deeper water. Between the surface waters and the atmosphere, air-sea gas exchange occurs,” Crichton told Salon.

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In pulmonary gas exchange, oxygen moves from the lungs to the bloodstream, while carbon dioxide moves from the bloodstream to the lungs.

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The results showed that lower pulmonary gas exchange may be associated with cognitive dysfunction, as well as lower gray matter and white matter volumes in patients with long COVID.

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