Enzymes are made from amino acids, and they are proteins. When an enzyme is formed, it is made by stringing together between 100 and 1,000 amino acids in a very specific and unique order. The chain of amino acids then folds into a unique shape.nzymes have extremely interesting properties that make them little chemical-reaction machines. The purpose of an enzyme in a cell is to allow the cell to carry out chemical reactions very quickly. These reactions allow the cell to build things or take things apart as needed. This is how a cell grows and reproduces.
Audio watermark. An audio watermark is a unique electronic identifier embedded in an audio signal, typically used to identify ownership of copyright. It is similar to a watermark on a photograph. Watermarking is the process of embedding information into a signal (e.g. audio, video or pictures) in a way that is difficult to remove.
watermark. 1  a mark indicating the height to which water rises or has risen, as in a river or inlet. 2  water line (def 5). 3  a figure or design impressed in some paper during manufacture, visible when the paper is held to the light. 4  to mark (paper) with a watermark. 5  to impress (a design, pattern, etc.), as a watermark.