gasopname

Gasopname is the process by which a gaseous molecule moves from the surrounding environment into a receiving medium, such as a biological tissue, a liquid, or a synthetic system. In scientific usage, it encompasses the uptake of gases across boundaries by diffusion, sometimes aided by transport mechanisms or chemical reactions.

In physiology, gasopname commonly describes how organisms take in gases essential for life. In humans and other animals, oxygen uptake occurs mainly through the lungs, where oxygen diffuses across the alveolar membrane into the blood, while carbon dioxide diffuses out for exhalation. Gasopname also includes the transport of absorbed gases to tissues and the removal of waste gases, driven by partial pressure gradients and blood flow. In plants, carbon dioxide uptake through stomata supports photosynthesis, while water vapor is released through transpiration; other gases may be absorbed or released in response to environmental conditions.

In environmental science, gasopname refers to the exchange of gases between compartments such as air, water, soil, and ice. The rate of uptake is influenced by gas solubility, diffusion coefficients, boundary layer properties, temperature, and pressure. Henry’s law provides a basis for relating gas solubility to partial pressure in many systems.

Measurement and modeling of gasopname employ techniques such as respirometry, gas exchange chambers, tracer studies, and diffusion models. Applications include medical assessment of respiratory function, studies of ecological gas exchange, and industrial processes like gas absorption and scrubbing.

See also: diffusion, gas exchange, respiration, Henry’s law.