active sites

Active sites are specific regions on enzymes, which are proteins that speed up chemical reactions in living organisms. These sites have a unique shape that fits particular molecules, called substrates, much like a key fits into a lock. When a substrate binds to an active site, it enables the enzyme to perform its function, facilitating the conversion of substrates into products. This interaction is crucial for processes such as digestion, metabolism, and DNA replication, illustrating how enzymes play a vital role in maintaining life by accelerating the necessary chemical reactions in our bodies.