Enhancement and improvement costs. 1  If you are using a wired system, having the wires run inside the walls can give you a more aesthetically pleasing setup. 2  Some cameras with built in apps will have an option for lighting that you can turn on via remote control or the app itself. 3  Some cameras may also have a built-in microphone.
Enzymes are made up of Î±n amino acids which are linked together via amide (peptide) bonds in a linear chain. This is the primary structure. The resulting amino acid chain is called a polypeptide or protein. The specific order of amino acids in the protein is encoded by the DNA sequence of the corresponding gene. Click here for a list of all 21 amino acids.
Lock and Key Model. Each type of enzyme has a unique 3-D shape, including a surface groove called an active site, which fits its target substrate much like a key fits in a lock. Other substances that donât fit can't enter the active site and no reaction occurs.