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Enzymes differ from most other catalysts by being much more specific. Enzyme activity can be affected by other molecules: inhibitors are molecules that decrease enzyme activity, and activators are molecules that increase activity. Many therapeutic drugs and poisons are enzyme inhibitors.
Enzyme catalysis is the increase in the rate of a process by an "enzyme", a biological molecule. Most enzymes are proteins, and most such processes are chemical reactions. Most enzymes are proteins, and most such processes are chemical reactions.
If an enzyme needs coenzyme to work itself, it is called an apoenzyme. In fact, it alone cannot catalyze reactions properly. Only when its cofactor comes in and binds to the active site to form holoenzyme does it work properly. One example of the coenzyme is Flavin. It contains a distinct conjugated isoalloxazine ring system.
While this experiment certainly does a good job of showcasing one type of enzyme, there are more than 75,000 different enzymes that all benefit the body in different ways, says Whitney Holden, PhD ...
Ribbon diagram of a protease (TEV protease) complexed with its peptide substrate in black with catalytic residues in red.(. A protease (also called a peptidase, proteinase, or proteolytic enzyme) [1] is an enzyme that catalyzes proteolysis, breaking down proteins into smaller polypeptides or single amino acids, and spurring the formation of new protein products. [2]
The enzymes lactase and sucrase, made in the small intestine, break down dairy sugar and sugar, respectively. Pepsin, made in the stomach, is the main enzyme involved in the digestion of protein.
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