enzyme meaning

[-aɪm]

WEnzyme

Enzymes /ˈɛnzaɪmz/ are macromolecular biological catalysts. Enzymes accelerate, or catalyze, chemical reactions.
Enzymes are known to catalyze more than 5,000 biochemical reaction types. Most enzymes are proteins, although a few are catalytic RNA molecules. Enzymes' specificity comes from their unique three-dimensional structures.
Like all catalysts, enzymes increase the rate of a reaction by lowering its activation energy. Some enzymes can make their conversion of substrate to product occur many millions of times faster.

Definition of enzyme in English Dictionary

NounPLenzymes
1. (biochemistry) A globular protein that catalyses a biological chemical reaction.
More Examples
1. Used in the Middle of Sentence
  - Then, the particles are moved through the intestinal tract, which consists of the foregut, midgut and hindgut, where several lignocellulolytic enzymes are secreted in each compartments.
  - Spiders predigest their food by injecting enzymes into their victims. ‎
  - It is evident that chitinolytic and glucanolytic enzymes play a major role in antifungal activity [63 ,64 ].
2. Used in the Beginning of Sentence
  - Enzyme activities were measured spectrophotometricly in triplicate and expressed as changes of absorbance per minute per mg protein.
  - Enzymes from aquatic fungi show distinct physiological characteristics, such as high salt tolerance or barophilicity, which are highly prized in industrial applications [42 ].
3. Used in the Ending of Sentence
  - Rossi and colleagues showed that the mitochondrial protein mitofilin co-localized with PARP-1 in mitochondria of HeLa cells, which shows the mitochondrial presence of the enzyme.