At the molecular level we are very simple, since all living beings that populate the Earth are made up of a small number of molecules. In fact, living matter consists mainly of long molecules in which a certain pattern repeats itself over and over again, sometimes with small variations. In addition, some of them fold in an elaborate, complex and extremely precise way. This allows them to act as catalysts, speeding up the speed of chemical reactions. These catalysts are called enzymes .
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