AP BIOLOGY

Detailed explanation-1: -That is, active site residues may form temporary covalent bonds with substrate molecules as part of the reaction process. An important word here is “temporary.” In all cases, the enzyme will return to its original state at the end of the reaction-it won’t stay bound to the reacting molecules.

Detailed explanation-2: -Enzymes bind substrates at key locations in their structure called active sites. They are typically highly specific and only bind certain substrates for certain reactions.

Detailed explanation-3: -Each enzyme typically binds only one substrate. Enzymes are not consumed during a reaction; instead they are available to bind new substrates and catalyze the same reaction repeatedly.

Detailed explanation-4: -Coenzymes are referred to those non-protein molecules that bind with enzymes to help them fulfill their jobs. Mostly they are connected to the active site by non-covalent bonds such as hydrogen bond or hydrophobic interaction.