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{{png-image}}'''Absorption''' refers to the process by which substances are taken up and incorporated into another substance. It is a phenomenon that occurs in various contexts, including [[chemistry]], [[biology]], [[pharmacology]], and [[physics]]. The concept of absorption is fundamental to understanding numerous processes in the natural and applied sciences, from the absorption of [[nutrients]] by the body to the absorption of light by materials.

==Chemical Absorption==
In [[chemistry]], absorption involves a substance (the absorbate) being dissolved by a liquid or solid (the absorbent). A common example of this is the absorption of [[water]] by a sponge. The process is critical in various industrial applications, including gas purification, where harmful components are absorbed from gas streams.

==Biological Absorption==
In [[biology]], absorption is most often discussed in the context of the digestive system, where [[nutrients]] and other substances are absorbed from food into the bloodstream. This process is vital for the nourishment and energy supply of an organism. The [[small intestine]] is particularly important for nutrient absorption, with its large surface area facilitating this process.

==Pharmacological Absorption==
In [[pharmacology]], absorption is a key concept in the administration of drugs. It refers to the process by which drugs enter the bloodstream after being administered. The rate and extent of drug absorption directly affect the drug's bioavailability and efficacy. Factors influencing drug absorption include the drug's formulation, the route of administration, and the presence of food in the stomach.

==Physical Absorption==
In [[physics]], absorption pertains to the way in which energy is taken up by a material. When light, sound, or another form of energy encounters a material, some of the energy can be absorbed by the material, converting to other forms of energy like heat. This principle is applied in soundproofing materials and in creating materials with specific optical properties.

==Mathematical Modeling of Absorption==
The process of absorption can be described and predicted using mathematical models. These models take into account the properties of the absorbate and the absorbent, as well as environmental conditions. Mathematical modeling is essential in the design and optimization of industrial processes involving absorption.

==Environmental Impact==
Absorption processes can have significant environmental impacts. For example, the absorption of [[greenhouse gases]] by the oceans affects the global climate. Similarly, the absorption of pollutants by soil and water bodies can have detrimental effects on ecosystems.

[[Category:Chemistry]]
[[Category:Biology]]
[[Category:Pharmacology]]
[[Category:Physics]]

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Absorbtion - Revision history

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