Catalyst (biochemistry)

A catalyst in biochemistry is a substance that speeds up chemical reactions in living organisms without being consumed in the process. Enzymes are the most common type of biological catalysts. They lower the energy needed for reactions to occur, making it easier for cells to carry out essential functions, like digestion or energy production. By facilitating these reactions, catalysts help maintain life by ensuring processes happen quickly and efficiently, even at relatively low temperatures. This is crucial for metabolism and other vital biochemical activities.