Substrate
biochemistry, a substrate (biochemistry) is a molecule undergoing a reaction, for which the presence of an enzyme lowers the activation energy. The substrate binds with the enzyme's active site, and the enzyme provides an alternative reaction pathway with a lower activation enthalpy.
- In industrial printing, substrate (printing) is used to describe the base material that images will be printed onto. Depending on the printing process and end use of the product, these materials include (though are not limited to) films, foils, textiles, fabrics, plastics, and any variety of paper (lightweight, heavyweight, coated, uncoated, paperboard, cardboard, etc.).
- In biology, a substrate is an environment in which an organism lives, and which it feeds on. For example, in many households, a bruised apple is a substrate for the growth of a fungus.
- In linguistics, a substrate or substratum refers to words borrowed from a language formerly spoken in a region, into the language currently spoken. For example, the French word chêne, meaning oak, is borrowed from the Gaulish language, a Celtic language formerly spoken in France.
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