Question

Why are enzymes organic molecules ?

Answer 1

Enzyme can be described as a substance that functions as a catalyst in living organisms. The role of enzymes is to regulate the rate at which chemical reactions proceed without changing the direction of the reaction or being altered in the process.

Complete answer :
An enzyme is defined as an organic catalyst for biochemical processes. A catalyst can be described as a substance that plays a vital role in speeding up a chemical reaction but is not consumed in the process. Similarly enzymes function in regulating the rate at which chemical reactions proceed without changing the direction of the reaction or being altered in the process. Most biochemical reactions are extremely slow in the absence of enzymatic catalysis and thus would not take place under the mild conditions of temperature and pressure that are compatible with life.
Enzymes are observed to be very specific in their action, which can vary from enzyme to enzyme. There is a specific region of the enzyme that is termed as the active site where the compound being acted on the substrate molecule binds in order to allow the enzyme to function as a catalyst for the reaction. When a substrate binds to an enzyme's active site, as a result an enzyme-substrate complex is formed. The enzyme while being attached to the substrate causes a weakening of certain chemical bonds in the substrate molecule that allows increase in the rate of chemical reaction.

Note:
Enzymes neither change the direction of reaction nor alter itself during the process of chemical reaction. The Names of enzymes are generally named after their substrates. Such as enzymes maltase, lipases and amylase. Maltase performs its function on disaccharide maltose. Lipases perform their function on lipids. Amylase performs its function on amylose. Exceptions where the enzymes aren't named after their substrates include pepsin & trypsin.