What physicians need to know about restrictive covenants. Roy W. BreitenbachThe mention of restrictive covenants provokes an almost visceral reaction among most physicians. But keep in mind these covenants are, for the most part, enforceable.
An enzyme inhibitor is a molecule that binds to an enzyme and decreases its activity. Since blocking an enzyme's activity can kill a pathogen or correct a metabolic imbalance, many drugs are enzyme inhibitors. medicinal enzyme inhibitor is often judged by its specificity (its lack of binding to other proteins) and its potency (its dissociation constant, which indicates the concentration needed to inhibit the enzyme). A high specificity and potency ensure that a drug will have few side effects and thus low toxicity.
The rate of enzyme activity is affected by temperature, pH and enzyme concentration. In enzyme reactions, as in all chemical reactions, matter and energy are conserved. In living things, enzymes are not used up â once they catalyze a particular reaction, they may be reused.nzymes and other catalysts lower the amount of energy necessary for chemical reactions to occur. This energy is called activation energy. By lowering activation energy, enzymes make it possible for many reactions to occur in a short period of time.