Enzyme definition

Any of various proteins, formed in plant and animal cells or made synthetically, that act as organic catalysts in initiating or speeding up specific chemical reactions and that usually become inactive or unstable above c. 50°C (122°F)

Any of numerous proteins produced in living cells that accelerate or catalyze the metabolic processes of an organism. Enzymes are usually very selective in the molecules that they act upon, called substrates , often reacting with only a single substrate. The substrate binds to the enzyme at a location called the active site just before the reaction catalyzed by the enzyme takes place. Enzymes can speed up chemical reactions by up to a millionfold, but only function within a narrow temperature and pH range, outside of which they can lose their structure and become denatured. Enzymes are involved in such processes as the breaking down of the large protein, starch, and fat molecules in food into smaller molecules during digestion, the joining together of nucleotides into strands of DNA, and the addition of a phosphate group to ADP to form ATP. The names of enzymes usually end in the suffix –ase.

Any of numerous compounds that are produced by living organisms and function as biochemical catalysts. Some enzymes are simple proteins, and others consist of a protein linked to one or more nonprotein groups.

Any of numerous compounds that are produced by living organisms and function as biochemical catalysts. Some enzymes are simple proteins, and others consist of a protein linked to one or more nonprotein groups.

Any of numerous compounds that are produced by living organisms and function as biochemical catalysts. Some enzymes are simple proteins, and others consist of a protein linked to one or more nonprotein groups.

The definition of an enzyme is a protein created by an organism that increases the rate at which chemical reactions occur.

There are three different types of enzymes - digestive, metabolic, and food enzymes.

Enzymes have a part in digestion, in the breaking down of vitamins or nutrients that you ingest, in building cells, and in reactions that transform energy into a usable source for the body.

Some of the enzymes that are vital to the digestive process include pepsin, and trypsin which help break down proteins in the digestive track, and convert them into amino acids.

Enzymes are organic compounds that are composed of amino acids.